A U.S. Marine Corps helicopter crashed Tuesday -- killing its four crew members -- during exercises along the U.S.-Mexico border near Plaster City, Calif., military officials said.
“We are currently still responding to what we have confirmed as a single helicopter incident," said a Facebook post from the nearby Naval Air Facility El Centro.
The naval facility sent fire and security units as well as other helicopters to the scene of the crash, KYMA-TV reported.
The Marine Corps CH-53E Super Stallion helicopter reportedly belonged to the 3rd Marine Aircraft Wing in San Diego.
The Marine Corps was withholding the identities of those killed for 24 hours until next of kin notifications are complete.
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