Marine helicopter crashes near El Centro, killing 4 crew members

EL CENTRO, Calif. -- Four crew members are dead after a Marine Corps helicopter crashed in the El Centro area Tuesday afternoon, base officials confirmed.

Around 2:30 p.m., a CH-53E Super Stallion helicopter from 3rd Marine Aircraft Wing, headquartered at MCAS Miramar, crashed during a routine training mission, according to a statement from Capt. Morgan Frazer.

The cause of the crash is under investigation.

The names of the crew members have not yet been released.

As word spread of the crash, officials offered words of support for the marines' families. "I want to offer my deepest condolences to the families and loved ones of our fallen heroes," said Congressman Scott Peters (D-Calif.). "My office will be closely following the Marine Corps investigation as they look into the details of this tragic crash."