BREAKING: Four dead in Washington Navy Yard shooting

Police are searching for an active shooter on the grounds of the Washington Navy Yard after several people were shot Monday morning. The U.S. Navy says three shots were fired at 8:20 a.m. at building #197 at the Naval Sea Systems Command headquarters. Several people have been shot, News4’s Jackie Benson reported. Benson says the suspect is inside a military building and is armed with a rifle. D.C. and Military Police are responding to the scene. NBC News is reporting 10 people were shot with at least four of those killed.