Navy Yard Shooter Believed to be Former Civilian Employee

September 16, 2013 Updated: July 18, 2015

The Washington Navy Yard shooting suspect is believed to be a former civilian employee who worked on the base. At least six people were killed

The Associated Press reported that six people were killed and several were wounded.

The suspect, who was not named, is believed to be a former employee, reported CBS News. He was shot and killed.

He is believed to be a retired Navy chief petty officer, reported Charlie Kaye of CBS.

Federal sources told the broadcaster the information.

There are potentially two other shooters, including a black male–who may have been in possession of a long gun, Washington D.C. Cathy L. Lanier said in a live press conference. The  other shooter was a white male in his 50s wearing a khaki military uniform. He allegedly had a handgun.

She said that the information is preliminary, and there is an “active investigation” going on.

Witnesses reported seeing two additional gunmen, Lanier said.

D.C. Mayor Vincent Gray said at a Monday news conference four people were wounded and taken to hospitals.