One injured after bullet rips into US Air Force helicopter over Virginia; FBI, military investigating - USA TODAY

Air Force helicopter on a routine training mission was shot at in Virginia on Monday.

Air Force helicopter on a routine training mission was shot at in Virginia on Monday, causing an injury to one of the craft's crew members. 

An Air Force UH-1N Huey helicopter was conducting a routine training mission when it was struck by a bullet a little before 1 p.m

FBI agents were dispatched to the Manassas Regional Airport after the bureau received reports that the helicopter was shot from the ground, the FBI Washington Field Office (WFO) said in a statement to USA TODAY. 

"WFO is working jointly with our law enforcement partners, including the Air Force Office of Special Investigations, to determine the circumstances surrounding the incident," the field office said in a statement.