At least one gunman opened fire inside a building at the Washington Navy Yard on Monday morning, and officials said several people were killed and as many as 10 were wounded, including a law enforcement officer.
A shooter was “contained” but not yet in custody, according to a Defense Department official, who spoke on condition of anonymity because they were not authorized to discuss the matter publicly. Two other officials — one with the Defense Department and the other with law enforcement — said police were looking into the possibility of a second shooter.
