FBI looks into third shooting at a military facility in two weeks

Washington (CNN) -- The FBI is investigating shots fired Monday night or early morning Tuesday at the Marine Corps recruiting station in Chantilly, Virginia, the bureau announced.

The overnight shooting is the third such incident at a military-related building in the past two weeks, according to an FBI news release.

Last week, a gunman fired several shots at the Pentagon, just two days after shots were fired at the National Museum of the Marine Corps in Virginia. Ballistics tests revealed both shootings involved a single weapon, the FBI said.