YUMA, Ariz. -- U.S. Marine Corps officials are investigating after two pilots died in a helicopter crash during a training mission in southwestern Arizona.
A statement from the Marine Corps Air Station says the crash of the AH-1Z Viper occurred at about 8:45 p.m. Saturday.
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A spokesman for the station says the crash occurred on the vast Marine Corps Air Station Yuma training grounds.
Capt. Gabriel Adibe says no additional information is immediately available.
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The names of the pilots who were killed have not been released pending notification of their families.
The station is located about 2 miles (3.2 kilometers) from Yuma and the 1,300 square mile (3,367 square kilometer) training ground is one of the world's largest military installations.