Washington Navy Yard on lockdown after shots fired

Washington Navy Yard on lockdown after shots fired

WASHINGTON (CNN) -- Washington D.C.'s Navy Yard facility is under lockdown Thursday morning, according to a Tweet from the U.S. Navy. This is the site of a 2013 shooting where 12 people were killed.

DC's Metropolitan Police Department tells CNN they are responding to the facility but there is no further information regarding the exact nature of the incident.

The U.S. Navy says the facility is under a shelter-in-place order. Police were called for a report with a man with a gun in the facility.

Police and ambulance vehicles surrounded the Washington Navy Yard on Thursday morning. Bystanders tweeted photos of the scene, though official details on the incident we're scarce as of Thursday morning.

CNN's Jeff Zeleney, Jamie Crawford, Pamela Brown, Deena Zaru, Jedd Rosche and Sophie Tatum contributed

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