7 US Marines are dead, and at least 8 have been wounded after a mortar exploded during a live-fire training exercise in Nevada.
According to the report, a 60-millimeter mortar shell exploded in a tube as marines were preparing to fire it last night.
4 marines were killed instantly and 2 others died while waiting to be flown to the hospital.
The accident happened at Hawthorne Army depot, just east of the California line.
Lt. Col. Craig Short, Hawthorne's deputy commander, said a traffic accident at the facility around 10 p.m. PT was related to the blast, but he didn't explain what the connection was.
The names of the deceased are expected to be released 24 hours after the family members of the soldiers are notified.