John Bacon and Donna Leinwand Leger, USA TODAY
WASHINGTON -- CBS NEWS and the Associated Press say Navy officials report six people have died after a shooting at Washington Navy Yard on Monday morning.
Police say 12 people were shot, including a police officer, Navy Yard base officer, and 8 civilians, inside the Naval Sea Systems Command Headquarters building (Bldg. 197) at 8:20 a.m.
CBS NEWS reports that one civilian employee disgruntled about a job dispute opened fire. CBS reports that employee is dead.
A Washington Hospital Center official says staff is treating one female victim shot in head and another female victim shot in the shoulder. The official also said that "There are people who will not be transported here from the scene because they are deceased."
A spokesperson for the Naval District of Washington reported that two shooters were down. Earlier, one shooter was believed to be barricaded somewhere and have multiple guns, including an AR-15. He was apparently "contained" between the third and fourth floor of the Naval Sea Systems Command headquarters.
D.C. Metropolitan Police Chief Cathy Lanier says 2 possible shooters may still be at large. 1 white man in khaki fatigues & 1 black man in olive "uniform" are still being sought in connection to the shooting.
A federal law enforcement official and a Defense Department official said Monday morning that a shooter had died. Both spoke on condition of anonymity because they were not authorized to discuss the ongoing investigation.
The first news broke with the Navy reporting on its Twitter feed that there was an "active shooter" at Building 197 at the Navy Yard, and that three shots had been fired at 8:20 a.m. ET. The Navy later reported deaths and injuries, but details remained fluid
The White House released a statement: "The president has been briefed several times about the unfolding situation at the Washington Navy Yard by Assistant to the President for Homeland Security and Counterterrorism Lisa Monaco and Deputy Chief of Staff Alyssa Mastromanaco. The President directed his team to stay in touch with our federal partners, including the Navy and FBI, as well as the local officials. We urge citizens to listen to the authorities and follow directions from the first responders on site."
James Killingsworth, a mason from Frederick, Md., was working on rebuilding a historic wall about 100 yards from the Navy Yard entrance when he heard two gunshots. If there were any other shots, he said, they were immediately drowned out by wailing sirens.
"Everything they had, Secret Service, federal police, everyone came speeding down the street. I've never seen so many police in my life, " he said. "Scary morning."
Flights at nearby Washington Reagan National Airport were being disrupted, with all departures halted at the airport as of 10 a.m. ET.
The Navy Yard is located on the banks of the Anacostia River, a few blocks from the Nationals baseball stadium. It's in an urban area where the development of new parks, shops and apartments has been ongoing.
The headquarters is the workplace for about 3,000 people.
The sea systems command is responsible for engineering, building, buying and maintaining ships, submarines and combat systems for the fleet. The sea systems command is the largest of the Navy's five system commands, with an annual budget of nearly $30 billion.