A Marine Corps pilot died and another was seriously injured when a U. S.Marine Corp helicopter crashed near Glamis Thursday.

The AH1Z Viper attack helicopter reportedly when down in the desert near Glamis at about 7:00 p.m. Thursday. Both pilots were taken to a hospital. One pilot survived and is being treated at Desert Regional Medical Center while the other succumbed to injuries sustained in the crash. The helicopter reportedly went down while participating in a training exercise. The cause of the crash remains under investigation.