7 Marines Killed in Chopper Crash in Arizona - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

7 Marines Killed in Chopper Crash in Arizona

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YUMA, Ariz. - Seven Marines were killed when their two helicopters collided Wednesday night around the Arizona-California border.

The Marines, from the 3rd Marine Airwing based at Miramar in Southern California, were conducting a training exercise at approximately 8 p.m. local time when their Cobra and Huey helicopters collided in midair.  There were no survivors. 

The cause of the crash is under investigation. The identities of the seven killed have not been released pending formal notification of next of kin.

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