Military report says 'one in a million' live fire malfunction rained shrapnel on California highway
Source: Associated Press
Military report says 'one in a million' live fire malfunction rained shrapnel on California highway
CHRISTOPHER WEBER
Tue, March 17, 2026 at 3:00 PM EDT
LOS ANGELES (AP) A one in a million malfunction during a live fire demonstration over Camp Pendleton last October led to a misfire that rained shrapnel on Interstate 5, striking two California Highway Patrol vehicles, a U.S. Marine Corps investigation found.
An artillery shell exploded over the highway that serves as the main corridor between Los Angeles and San Diego during a celebration of the 250th anniversary of the Marine Corps, attended by Vice President JD Vance and Defense Secretary Pete Hegseth. Nobody was hurt, and investigators ruled out any negligence or wrongdoing by Corps members.
The day before the event, Democratic Gov. Gavin Newsom called the planned demonstration with live artillery dangerous and unnecessary, and he ordered I-5 to be closed during it. That closure drew condemnation from the White House and other Republicans, and the Marine Corps said the exercises wouldn't endanger motorists.
In a 666-page report dated Dec. 19 and first reported on Monday, the Marines concluded that there is no definitive answer to why an M795 high explosive round detonated early at an altitude of about 1,480 feet (450 meters) during the Oct. 18 demonstration. Such a premature detonation is beyond reasonable expectations and should not have happened, but it did, the report says.
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