Arnold Gate of the Anacostia-Bolling Joint Military Base in Washington, Wednesday, April 17, 2013.

Alex Brandon | AP

A US military base in Washington, DC was locked down Friday in response to a potentially armed person seen on campus.

The person, originally described as a medium-stature black man “carrying a Gucci bag,” was last spotted on the south side of the Anacostia-Bolling common base, according to the outpost’s official Facebook page. DC police said they would only check if the person was male.

An update from the account later described the person as a black man of medium build and “dreads that are medium in height”. The person wears blue or green pants and a white tank top and can carry a bag, according to the Facebook post.

This update, which came more than an hour after the lockdown was posted, advised people to “keep seeking shelter in the field”.

About 15 minutes earlier, the Facebook page had alerted people to be on the lookout for two people: a black man of medium build “with dreads” and “in ripped blue jeans” and the other a black man with green pants and a white top that “can be hurt”.

This was revised to only one person in the last update.

“LOCKDOWN LOCKDOWN LOCKDOWN” announced the base for the first time at 12:37 PM ET on Facebook.

“When you meet the person and have a safe path, RUN. If you don’t have a safe path, hide yourself. Prepare for the FIGHT, “reads the post.

A DC police spokeswoman told CNBC that the department received a call at 12:04 p.m. regarding the sound of gunfire at a location east of the base.

No victims have yet been identified, said the spokeswoman.

Google Earth view of Anacostia-Bolling Air Force Base, DC.

Google Earth

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