Military Helicopter Crashes at US Base in Okinawa

At a training exercise

A U.S. military helicopter crashed at an American base on the southern island of Okinawa, Japanese and U.S. officials said Monday.

A HH-60 rescue helicopter crashed in a training area at Camp Hansen with four crew members on board, the U.S. Air Force said in a statement. The status of the crew members is unknown, it said.