US | Camp Pendleton 2 Marines Die in California Training Crash Third major air accident this summer at Camp Pendleton By Mary Papenfuss Posted Sep 20, 2011 1:10 AM CDT Copied An airplane drops fire retardant on a brush fire that started on Camp Pendleton when a Marine helicopter crashed yesterday in De Luz, Calif. (AP Photo/Lenny Ignelzi) Two US Marines were killed when the Super Cobra attack helicopter they were flying in went down in flames during a training exercise at California's camp Pendleton. Firefighters were battling a 120-acre brush fire triggered by the afternoon crash late yesterday. It was the third major accident in the Southern California military base in three months. A similar helicopter crash in July killed one Marine and injured five. Two Marines suffered broken bones when they ejected from a crippled fighter jet that crashed into the Pacific last month during a Camp Pendleton training exercise. Officials are investigating the cause of yesterday's crash, reports KGTV San Diego. "It's a tough time for us," said USMC Maj. Carl Redding. "Anytime we lose Marines whether in war or in training stateside it's hard for all of us." Read These Next A former NFL Pro Bowler has died at age 36. The massive AWS failure exposed a big problem with the internet. Backlash for Trump nominee who said he has 'a Nazi streak.' A man ended up dead after trying to steal from Spirit Halloween. Report an error