San Diego, Feb 8 (AP) Five US Marines aboard a helicopter that went down during stormy weather in the mountains outside of San Diego are confirmed dead, the military said Thursday.

Authorities say the CH-53E Super Stallion vanished late Tuesday night while returning to Marine Corps Air Station Miramar in San Diego after training at Creech Air Force Base, northwest of Las Vegas.

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"It is with a heavy heart and profound sadness that I share the loss of five outstanding Marines from 3d Marine Aircraft Wing and the “Flying Tigers,” Maj Gen Michael J Borgschulte, commander of 3rd Marine Aircraft Wing, said in a statement.

The names of the Marines were not immediately released.

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“To the families of our fallen Marines, we send our deepest condolences and commit to ensuring your support and care during this incredibly difficult time,” Borgshulte said. “Though we understand the inherent risks of military service, any loss of life is always difficult.”

Efforts to recover the remains of the five have begun and an investigation into the crash is underway, according to the statement.

The craft was discovered Wednesday morning near the mountain community of Pine Valley, an hour's drive from San Diego. (AP)

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)