08/15/2009 05:12 am ET | Updated May 25, 2011

Capitol Hill Shooting: Gunfire, Entrances Sealed Off

WASHINGTON — A U.S. Capitol Police officer shot a 35-year-old man at New Jersey Avenue NW and C Street NW, blocks from the Capitol, according to law enforcement sources.

It happened just after 5:15 p.m.

D.C. Fire and EMS spokesman Pete Piringer said the wounded person was a 35-year-old civilian, who was shot by a U.S. law enforcement agency. Sources say it was U.S. Capitol Police.

The wounded man was taken to Washington Hospital Center's MedStar trauma unit in critical condition, Piringer said.

Police briefly sealed off part of the Capitol as a precaution.

Officials did not immediately confirm any details of the incident.

Robert Drumm, a tourist from Oklahoma visiting the nation's capital with his family, said in an interview, "There were so many gunshots being fired my family got down."

Drumm said he saw one victim, not wearing a police uniform, taken away in an ambulance.

Drumm said he first noticed trouble when he saw one car speeding and being chased by a police vehicle.

Numerous emergency vehicles converged quickly in the area.

Another witness, Dale Lanigan of Toledo, Ohio, described a similar scene, although he said two police cars gave chase.

As the car went past him, Lanigan said, "the driver had one hand on the wheel and it looked like he was reaching for something."

Lanigan said he then heard shots and police ordered him to get away. He said the driver of the car was taken away in an ambulance.