Story highlights 2 die on a training mission at the Marine Corps Air Ground Combat Center, Marines say

Their helicopter crashed late Friday afternoon at the center near Joshua Tree National Park

(CNN) Two Marines died after their helicopter crashed on a training mission in Southern California, the military said in a statement.

The aircraft went down around 4:30 p.m. (7:30 p.m. ET) Friday at the Marine Corps Air Ground Combat Center in Twentynine Palms, California.

"Our hearts go out to the families and friends of the two Marines we lost in this tragic accident," Maj. Gen. Michael Rocco said Friday.

The names of the Marines will be released after the next of kin are notified.

California-based U.S. Marine helicopter crashes, two fatalities. Our hearts go out to the families of the Marines. pic.twitter.com/HLAEwvg7SN — MCAS Miramar, 3rdMAW (@MCASMiramarCA) January 24, 2015

According to its website , the Marine Corps Air Ground Combat Center's mission "is to conduct relevant live-fire combined arms training, urban operations, and Joint/Coalition level integration training" for Marines and Navy sailors. It's located in San Bernardino County some 130 miles east of Los Angeles and abuts Joshua Tree National Park.