A shooter opened fire at the Navy Yard in southeast Washington D.C., wounding several people and locking down area installations as the hunt continued for the assailant.

From the Navy at 9:42 a.m. Eastern time:

Several people were injured in a shooting at the Washington Navy Yard Sept. 16.

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).

Emergency personnel remain on scene and a “shelter in place” order has been issued for Navy Yard personnel.

This release will be updated as new information is confirmed.

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.

The suspect has been described as a tall black male wearing black clothes. Two police officers, one a base officer and one Metro PD, were among those hit.

UPDATE: The Washington Post is quoting a police spokesman saying there are “three shooters, including at least one in fatigues.”