Montgomery County police are responding to a report of a shot fired at the Walter Reed Medical Center campus in Bethesda.
On Twitter, police say that officers have not confirmed the initial report of a shot fired that came in around 10:48 a.m.
Aerial images from the scene show law enforcement vehicles on the campus. Gates to the campus have been closed to traffic.
This is a breaking news situation – stay with FOX 5 for the latest updates.