Security officer wounded in US courthouse shooting

A drive-by shooting wounded a federal security officer outside the U.S. courthouse in downtown Phoenix on Tuesday, and later a person was taken into custody, authorities said. The officer was taken to a hospital and was expected to recover, according to city police. The court security officer works for the U.S. Marshals Service.

Hours after the shooting, a street surrounding the courthouse was closed to traffic. The deputies were struck in the head and critically wounded but were expected to recover. The gunman hasn’t been captured, and a motive has not been determined. Federal courthouses have been flashpoints for recent violence, but it's not clear who shot the officer in Phoenix or why.The shooting came after the weekend ambush of two Los Angeles County deputies. They were sitting in their parked vehicle when a man walked up to the passenger’s side and fired multiple rounds.