UPDATE: D.C. Fire and EMS have now left the scene, and are turning over the investigation to police, though streets are apparently beginning to open back up. Pedestrian access to the area had been restricted during the investigation — Charles Allen, chief of staff for Ward 6 Councilmember Tommy Wells, tweeted that he was “stuck in the Reagan Building and security won’t let us in or near the Wilson Building.” Authorities are currently investigating a suspicious vehicle at the intersection of 14th Street and Pennsylvania Avenue NW. According to DDOT, Pennsylvania Avenue has been shut down between 13th and 15th Streets NW and are recommending people find alternate routes to avoid the area.