Police Report No Active Shooter at Washington Navy Yard Amid Gunshot Reports

Authorities in Washington, D.C. are reporting no evidence of a shooter after reports of gunfire at the Washington Navy Yard.

Police said they received an emergency phone call at around 7:30 a.m. on Thursday reporting possible gunfire at the Navy Yard, where 12 people were killed by shooter Aaron Alexis in 2013.

"A call was placed from a building inside of the Washington Navy yard for possible sounds of gun shots around 0729 AM - a subsequent request was made to partner law enforcement agencies for assistance. At this time we have completed our search of the building and have found no evidence of a shooting or injured personnel," the Washington D.C. police department said in a statement.

"The scene has been turned back over to Vice Admiral Hilarides of the NavSea Command," the statement added.

The Washington Navy Yard remained on lockdown Thursday morning as authorities continued to search the area.

Chris Johnson, public affairs officer for the Naval Sea Systems command, told ABC News that while there is no evidence of a shooter, everyone has been ordered to stay in place.

"But there's been no confirmed details on what the incident is or may be. We're currently investigating," Johnson said.

In September 2013, 12 people were killed when shooter Aaron Alexis opened fire on the navy yard. The FBI later indicated that Alexis had been driven by delusions that his mind was being controlled.