The U.S. Navy headquarters in Washington, D.C. is on lockdown after a gunman opened fired inside a building at the Naval Sea Systems Command Headquarters building on the Washington Navy Yard on Monday morning, Sept. 16, 2013.
A press release issued by the U.S. Navy (below) states that the incident happened at 8:20 a.m. ET and at least one injury has been confirmed, with several others said to be wounded.
UPDATE 10 a.m. ET: U.S. Navy via Twitter confirms "several injuries with reports of fatalities at #NavyYardShooting. More to follow."
A "shelter in place" order has been issued for all personnel on the premises. The incident happened inside building 197 at the Washington Navy Yard on 1333 Isaac Hull Avenue in D.C.
At this time, the gunman has not been apprehended.
SWAT officers, military police, U.S. Capitol police and Washington city police are all on the scene searching for the gunman. NBC News reports that the gunman may have used a rifle in the shooting.
The following is the most recent press release from the U.S. Navy:
"An active shooter was reported inside the Naval Sea Systems Command Headquarters building (Bldg. 197) on the Washington Navy Yard at 8:20 a.m. (Eastern Time).
There is one confirmed injury. Emergency personnel are on scene and a "shelter in place" order has been issued for Navy Yard personnel.
The Naval Sea Systems Command's headquarters is the work place for about 3,000 people.
The organization is comprised of command staff, headquarters directorates, affiliated Program Executive Offices (PEOs) and numerous field activities. Together, we engineer, build, buy and maintain ships, submarines and combat systems that meet the Fleet's current and future operational requirements.
Naval Sea Systems Command (NAVSEA) is the largest of the Navy's five system commands. With a fiscal year budget of nearly $30 billion, NAVSEA accounts for one quarter of the Navy's entire budget. With a force of 60,000 civilian, military and contract support personnel, NAVSEA engineers, builds, buys and maintains the Navy's ships and submarines and their combat systems."
Follow the U.S. Navy on Twitter for updates.