BOSTON -- Officials at Boston's Logan International Airport are apologizing for holding a fire drill, complete with smoke and flames, on the 12th anniversary of the Sept, 11, 2001 terrorist attacks.

The two hijacked jets that were flown into the World Trade Center towers flew out of Logan.

The runway fire drill, announced on the airport's Facebook page, drew harsh condemnation on social media sites.

The Massachusetts Port Authority, the agency that runs the airport, said in a statement that it "apologizes for conducting the fire training exercise and understands that it may have offended many of those touched by the events of Sept. 11."

Several events were held at the airport to mark the day.

"How clueless and insensitive can you be," one woman wrote on the airport's Facebook page.

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  • A girl wipes her face after reading the name of her father as friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • Daniel Henry, a Port Authority of New York/New Jersey police officer, pauses during a moment of silence at 9:01 a.m. at the south reflecting pool at the 9/11 Memorial on Wednesday, Sept. 11, 2013, during ceremonies marking the 12th anniversary of the 9/11 terrorist attacks in New York. (AP Photo/Stan Honda, Pool)

  • New York City Police Commissioner Ray Kelly, right, hugs a friend at the 9/11 Memorial during ceremonies marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, Wednesday, Sept. 11, 2013. (AP Photo/Stan Honda, Pool)

  • Ann Ellis of New York sells American Flags and pins to passing pedestrians in New York Wednesday, Sept. 11, 2013 as the twelfth anniversary ceremonies of the attacks of Sept. 11, 2001 take place at the nearby 9/11 Memorial. (AP Photo/Craig Ruttle)

  • Chuck Hagel, Barack Obama

    President Barack Obama, accompanied by Defense Secretary Chuck Hagel, wipes his face as he speaks during a 9/11 remembrance ceremony at the Pentagon, Wednesday, Sept. 11, 2013. (AP Photo/Manuel Balce Ceneta)

  • Friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • Former New York Mayor Rudolph Giuliani, foreground left, and Mayor Michael Bloomberg, right, attend ceremonies at the 9/11 Memorial marking the 12th Anniversary of the attacks on the World Trade Center, in New York, Wednesday, Sept. 11, 2013. (AP Photo/The Daily News, David Handschuh, Pool)

  • The names of victims are read aloud as friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • Barack Obama

    President Barack Obama places a wreath at the Pentagon 9/11 Memorial, Wednesday, Sept. 11, 2013, at the Pentagon, during a ceremony to mark the 12th anniversary of the 9/11 attacks. (AP Photo/Pablo Martinez Monsivais)

  • Friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • Barack Obama

    President Barack Obama greets relatives of the victims of the Pentagon terrorist attack during a 9/11 remembrance ceremony at the Pentagon, Wednesday, Sept. 11, 2013. (AP Photo/Manuel Balce Ceneta)

  • Barack Obama

    President Barack Obama lowers his head during a moment of silence at the Pentagon, Wednesday, Sept. 11, 2013, during a ceremony to mark the 12th anniversary of the 9/11 attacks. (AP Photo/Pablo Martinez Monsivais)

  • 2013 9/11Memorial Ceremonies Pool

    Kayla Fallon, daughter of William Fallon who perished in Tower One when she was 8 years old, cries while visting the 9/11 Memorial during ceremonies marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, Sept. 11, 2013. (AP Photo/John Angelillo, Pool)

  • Friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • A woman looks to the sky during a moment of silence as friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • A woman wipes her eyes during a moment of silence as friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • The World Trade Center Flag is presented as friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • The World Trade Center Flag is presented as friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • Friends and relatives of the victims of 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • Jeana Fossali, a close family member of Police Officer John William Perry, traces his name engraved in the South Pool at the 9/11 Memorial during a ceremony marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, Wednesday, Sept. 11, 2013. (AP Photo/Mary Altaffer, Pool)

  • Friends and relatives of the victims of the 9/11 terrorist attacks gather at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, for a ceremony marking the 12th anniversary of the attacks in New York. (AP Photo/Jason DeCrow)

  • 2013 9/11 Memorial Ceremonies POOL

    Friends and family members gather at the 9/11 Memorial during ceremonies marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, Sept. 11, 2013. (AP Photo/Alejandra Villa, Pool)

  • A woman pauses at the south reflecting pool at the 9/11 Memorial during ceremonies marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, Wednesday, Sept. 11, 2013. (AP Photo/Stan Honda, Pool)

  • Hector Garcia of Brooklyn, N.Y., accompanied by his daughter Tania, carries photo of his daughter Marilyn, Tania's sister, who died in the attacks on the World Trade Center, as they arrive for ceremonies marking the 12th anniversary of the 9/11 attacks, in New York, Wednesday Sept. 11, 2013 (AP Photo/The Record, Chris Pedota, Pool)

  • Retired FDNY Marshal, Ernie Medaglia, of Bronxville, N.Y., who was at the attacks at the World Trade Center on Sept. 11, 2001, is emotional as he listens to New York Gov. Andrew Cuomo at a ceremony near the 9/11 Memorial honoring first responders and FDNY Rescue 1 on the twelve anniversary of the attacks on the World Trade Center in New York Wednesday, Sept. 11, 2013. (AP Photo/Craig Ruttle)

  • A TSA color guard takes part in a ceremony at Cleveland Hopkins Airport Wednesday, Sept. 11, 2013, marking the 12th anniversary of the 9/11 terror attacks. (AP Photo/Mark Duncan)

  • Singer Billy Joel, left, and motorcycle designer and television personality Paul Teutul, Jr., look up at One World Trade Center Wednesday, Sept. 11, 2013, after they rode with firefighters and first responders with the FDNY Motorcycle Club from FDNY Rescue 1 headquarters to the World Trade Center site for the 12th anniversary commemorations of the 9/11 attacks. The ride represented the firefighters who responded on 9/11. (AP Photo/Craig Ruttle)

  • Retired FDNY Marshal Ernie Medaglia, of Bronxville, N.Y., who was at the attacks at the World Trade Center on Sept. 11, 2001, is emotional as he listens to New York Gov. Andrew Cuomo at a ceremony near the 9/11 Memorial honoring first responders and FDNY Rescue 1 on the 12th anniversary of the attacks on the World Trade Center in New York Wednesday, Sept. 11, 2013. (AP Photo/Craig Ruttle)

  • Barack Obama, Michelle Obama, Joe Biden, Jill Biden

    President Barack Obama, first lady Michelle Obama Vice President Joe Biden and Jill Biden join members of the White House staff during a moment of silence to mark the 12th anniversary of the 9/11 attacks, Wednesday, Sept. 11, 2013 on the South Lawn of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama, Michelle Obama, Joe Biden, Jill Biden

    President Barack Obama, first lady Michelle Obama Vice President Joe Biden and Jill Biden join members of the White House staff as a military bugler played Taps to mark the 12th anniversary of the 9/11 attacks, Wednesday, Sept. 11, 2013 on the South Lawn of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

  • Michelle Murray, of Rockaway, N.J., stands at the edge of the North Pool at the 9/11 Memorial during a ceremony marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, Sept. 11, 2013. (AP Photo/Justin Lane, Pool)

  • Barack Obama, Michelle Obama, Joe Biden, Jill Biden

    President Barack Obama, first lady Michelle Obama, Vice President Joe Biden and Jill Biden join members of the White House staff during a moment of silence to mark the 12th anniversary of the 9/11 attacks, Wednesday, Sept. 11, 2013, on the South Lawn of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

  • Family members of Ji Yao Justin Zhao pay their respect at a ceremony marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, Wednesday, Sept. 11, 2013. (AP Photo/Mary Altaffer, Pool)

  • Barack Obama, Michelle Obama, Joe Biden, Jill Biden

    President Barack Obama, first lady Michelle Obama, Vice President Joe Biden and Jill Biden join members of the White House staff as a military bugler played Taps to mark the 12th anniversary of the 9/11 attacks, Wednesday, Sept. 11, 2013 on the South Lawn of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

  • Barack Obama, Michelle Obama, Joe Biden, Jill Biden

    President Barack Obama, first lady Michelle Obama, Vice President Joe Biden and Jill Biden join members of the White House staff during a moment of silence to mark the 12th anniversary of the 9/11 attacks, Wednesday, Sept. 11, 2013 on the South Lawn of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

  • Ron Joy makes a rubbing of his friend's name, New York Fire Department firefighter Capt. Vincent Giammona, at the South reflecting pool at the 9/11 Memorial on Wednesday, Sept. 11, 2013, during ceremonies marking the 12th anniversary of the Sept. 11 terrorist attacks in New York. (AP Photo/Stan Honda, Pool)

  • A woman walks along the edge of the North Pool at the 9/11 Memorial during a ceremony marking the 12th anniversary of the 9/11 attacks on the World Trade Center, in New York, Wednesday, Sept. 11, 2013. (AP Photo/Justin Lane, Pool)

  • Barack Obama, Michelle Obama, Joe Biden, Jill Biden

    President Barack Obama, first lady Michelle Obama, Vice President Joe Biden and Jill Biden join members of the White House staff during a moment of silence to mark the 12th anniversary of the 9/11 attacks, Wednesday, Sept. 11, 2013, on the South Lawn of the White House in Washington. (AP Photo/Pablo Martinez Monsivais)

  • Obamas And Bidens Observe Moment Of Silence To Mark Anniversary Of 9/11 Attacks

    WASHINGTON, DC - SEPTEMBER 11: U.S. President Barack Obama, first lady Michelle Obama, and Vice President Joseph Biden's wife Jill Biden come out from the White House to observe a moment of silence to mark the 12th anniversary of the 9/11 attacks September 11, 2013 on the South Lawn of the White House in Washington, DC. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. (Photo by Alex Wong/Getty Images)

  • A firefighter pauses for a quiet moment as friends and relatives of the victims of 9/11 gather for a ceremony marking the 12th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site, Wednesday, Sept. 11, 2013, in New York. (AP Photo/Jason DeCrow)

  • Showkatara Sharif, of Chantilly, Va., stands next to the engraving of her daughter's name, Shakila Yasmin, at the edge of the North Pool at the 9/11 Memorial during a ceremony marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, Sept. 11, 2013. (AP Photo/Justin Lane, Pool)

  • Obamas And Bidens Observe Moment Of Silence To Mark Anniversary Of 9/11 Attacks

    WASHINGTON, DC - SEPTEMBER 11: U.S. President Barack Obama, first lady Michelle Obama, Vice President Joseph Biden, his wife Jill Biden return to the White House after they observed a moment of silence to mark the 12th anniversary of the 9/11 attacks September 11, 2013 on the South Lawn of the White House in Washington, DC. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. (Photo by Alex Wong/Getty Images)

  • Obamas And Bidens Observe Moment Of Silence To Mark Anniversary Of 9/11 Attacks

    WASHINGTON, DC - SEPTEMBER 11: U.S. President Barack Obama and first lady Michelle Obama come out from the White House to observe a moment of silence to mark the 12th anniversary of the 9/11 attacks September 11, 2013 on the South Lawn of the White House in Washington, DC. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. (Photo by Alex Wong/Getty Images)

  • New York Commemorates The 12th Anniversary Of The September 11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: Daniel Henry, a Port Authority of New York/New Jersey police officer, pauses during a moment of silence at 9:01 am EDT, at the South reflecting pool of the 9/11 Memorial during ceremonies for the twelfth anniversary of the terrorist attacks on lower Manhattan at the World Trade Center site on September 11, 2013 in New York City. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. Following the attacks in New York, the former location of the Twin Towers has been turned into the National September 11 Memorial & Museum. (Photo by Stan Honda-Pool/Getty Images)

  • New York Commemorates The 12th Anniversary Of The September 11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: Daniel Henry, a Port Authority of New York/New Jersey police officer, pauses during a moment of silence at 9:01 am EDT, at the South reflecting pool of the 9/11 Memorial during ceremonies for the twelfth anniversary of the terrorist attacks on lower Manhattan at the World Trade Center site on September 11, 2013 in New York City. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. Following the attacks in New York, the former location of the Twin Towers has been turned into the National September 11 Memorial & Museum. (Photo by Stan Honda-Pool/Getty Images)

  • New York Commemorates The 12th Anniversary Of The September 11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: People gather next to Ground Zero for a ceremony on September 11, 2013 in New York City. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. Following the attacks in New York, the former location of the Twin Towers has been turned into the National September 11 Memorial & Museum. (Photo by John Moore/Getty Images)

  • New York Commemorates The 12th Anniversary Of The September 11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: A woman photographs the One World Trade Center as church bells toll for 9/11 victims on September 11, 2013 in New York City. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. Following the attacks in New York, the former location of the Twin Towers has been turned into the National September 11 Memorial & Museum. (Photo by John Moore/Getty Images)

  • New York Commemorates The 12th Anniversary Of The September 11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: A woman gazes at the One World Trade Center as church bells toll for 9/11 victims on September 11, 2013 in New York City. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. Following the attacks in New York, the former location of the Twin Towers has been turned into the National September 11 Memorial & Museum. (Photo by John Moore/Getty Images)

  • New York Commemorates The 12th Anniversary Of The September 11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: A woman gazes at the One World Trade Center as church bells toll for 9/11 victims on September 11, 2013 in New York City. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. Following the attacks in New York, the former location of the Twin Towers has been turned into the National September 11 Memorial & Museum. (Photo by John Moore/Getty Images)

  • New York Commemorates The 12th Anniversary Of The September 11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: Pedestrians pass by the One World Trade Center as church bells toll for 9/11 victims on September 11, 2013 in New York City. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. Following the attacks in New York, the former location of the Twin Towers has been turned into the National September 11 Memorial & Museum. (Photo by John Moore/Getty Images)

  • New York Commemorates The 12th Anniversary Of The September 11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: Former New York CIty Mayor Rudy Giuliani (2nd L) and New York CIty Mayor Michael Bloomberg (C) hold their hands over thier hearts at the 9/11 Memorial during ceremonies for the twelfth anniversary of the terrorist attacks on lower Manhattan at the World Trade Center site on September 11, 2013 in New York City. The nation is commemorating the anniversary of the 2001 attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. Following the attacks in New York, the former location of the Twin Towers has been turned into the National September 11 Memorial & Museum. (Photo by David Handschuh-Pool/Getty Images)