MANASSAS, Va. - The FBI is investigating after shots were reportedly fired at an Air Force helicopter near Manassas on Monday.READ MORE: Virginia GOP calls for resignation of delegate reportedly struck by a flashbang grenade at Manassas protestOne person in the helicopter was injured, but the agency didn’t specify whether they’d been shot.Download the FOX 5 DC News App for Local Breaking News and WeatherThey do not believe the injury is life threatening.The helicopter was flying over Middleburg on Monday when it was shot from the ground nearby, according to authorities.The helicopter made an emergency landing at the Manassas Regional Airport, and federal agents were called to the scene to investigate, the FBI said in a.