WASHINGTON (AP) — The U.S. Navy says one person is injured after a shooting at a Navy building in Washington.

Police and emergency crews gathered Monday morning outside the Naval Sea Systems Command Headquarters building, where the shooting was reported.

The Navy says three shots were fired and that that about 3,000 people work in the building. People inside the building have been directed to stay in place.

Naval Sea Systems Command is the largest of the Navy's five system commands and accounts for a quarter of the Navy's entire budget.

It builds, buys and maintains the Navy's ships and submarines and their combat systems.

Police from multiple local and federal agencies were responding along with SWAT crews.

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