Updated at 12:27 p.m. ET
The Washington, D.C., Police Department has issued an "all clear" at the Washington Navy Yard, the scene of a 2013 mass shooting, where there was a report today of possible gunshots.
"At this time, there is no evidence of gunshots. There is no evidence of a shooter. And there's no evidence of any victims today," District Mayor Muriel Bowser said at a news conference.
The U.S. Navy also confirmed there was no sign of a shooting.