NORFOLK, Va. -- The Pentagon said late Saturday that it is investigating why a Navy submarine collided with an Aegis cruiser off the East Coast.
The U.S. Fleet Forces Command said in a news release that the submarine USS Montpelier and the Aegis cruiser USS San Jacinto collided at about 3:30 p.m. during routine operations. No one was injured, and the extent of any damage to the vessels was not clear Saturday evening, said Lt. Commander Brian Badura of the Fleet Forces Command.
"We have had circumstances where Navy vessels have collided at sea in the past, but they're fairly rare as to how often they do take place," Badura told The Associated Press.
Navy officials said the collision was under investigation, but declined to offer specifics on what happens next or on where the incident took place.
"If we do have an incident that does take place, there are folks that swing into action... to help us make a better, more conclusive explanation of exactly what happened," Badura said.
The news release says "overall damage to both ships is being evaluated," and that the sub's propulsion plant was "unaffected by the collision." Both Navy ships are based at Norfolk, Va. and are operating on their own power, the news release says.
Associated Press writer Norman Gomlak contributed to this report from Atlanta.
Also on HuffPost:
This Thursday, Oct. 11, 2012, photo made available by the Florida Fish and Wildlife Conservation Commission shows a giant eyeball from a mysterious sea creature that washed ashore and was found by a man walking the beach in Pompano Beach, Fla. on Wednesday. (AP Photo/Florida Fish and Wildlife Conservation Commission, Carli Segelson)
A man takes part in racing Pacu Jawi or 'mud cow racing" in Padang Pajang, West Sumatra, Indonesia, Saturday, Oct 13, 2012. (AP Photo/Vincent Thian)
A naked protester runs through Syntagma Square by the parliament building as demonstrators clash with police while protesting against the visit to Greece by Germany's Chancellor Angela Merkel October 9, 2012 in Athens, Greece. (Photo by Milos Bicanski/Getty Images)
Gil Florini, priest of Saint-Pierre-d'Arene's church, blesses a dog during a mass dedicated to animals on October 7, 2012 in Nice, southeastern France. (VALERY HACHE/AFP/GettyImages)
An elderly man takes his afternoon nap in a shopping mall on Friday Oct. 12, 2012 in Singapore. (AP Photo/Wong Maye-E)
Spanish actor Nacho Vidal performs Babylon Opera with La Fura dels Baus at the Barcelona Erotic Fair ( Salon Erotico de Barcelona) on October 12, 2012 in Barcelona, Spain. (Photo by Miquel Benitez/Getty Images)
A Cirque du Soleil cast member poses prior to teaching the public a dance at Customs House on October 3, 2012 in Sydney, Australia. (Photo by Cameron Spencer/Getty Images)
An artisan works on an idol of Hindu Goddess Durga at a workshop ahead of Durga Puja festival in Allahabad, India, Thursday, Oct. 11, 2012. Durga Puja will be celebrated from Oct. 20-24. (AP Photo/Rajesh Kumar Singh)
A camel rider kisses his camel as he waits for customers at the historical site of the Giza Pyramids, near Cairo, Egypt, Thursday, Oct. 11, 2012. (AP Photo/Nariman El-Mofty)
A woman who plays the role of Chun Hyang performs an aerial stunt during the acrobatic play of "Tale of Chun Hyang" at the Pyongyang Circus Theatre to mark the 15th anniversary of the late North Korean leader Kim Jong Il's election as general secretary of the Workers' Party of Korea in Pyongyang, North Korea, Monday, Oct. 8, 2012. (AP Photo/Jon Chol Jin)
This time exposure photo shows the Falcon 9 SpaceX rocket lifting off from space launch complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla. on Sunday, Oct. 7, 2012. (AP Photo/Terry Renna)
Supporters of President Hugo Chavez celebrate outside the Miraflores presidential palace in Caracas, Venezuela, Sunday, Oct. 7, 2012. Venezuela's electoral council said late Sunday President Hugo Chavez has won re-election, defeating challenger Henrique Capriles.(AP Photo/Ramon Espinosa)