California authorities say metal shrapnel from an exploding artillery shell hit and damaged a state highway patrol vehicle as the Marine Corps fired live rounds over a freeway during exercises observed by Vice President JD Vance.

Metal shrapnel from Marine Corps live-fire training struck a California Highway Patrol vehicle on the same day as Vice President JD Vance's visit to Camp Pendleton.

A U.S. Marine Corps artillery round prematurely detonated over Interstate 5 on Saturday sending metal shrapnel onto a California Highway Patrol vehicle during a Marine celebration.

The mishap sent shrapnel toward Interstate 5 and California Highway Patrol officers who were part of Vice President JD Vance’s protective detail, officials said.

The Vice President had traveled to California for exercises marking the 250th anniversary of the Marine Corps.

A patrol vehicle was struck by shrapnel from an artillery round that was fired during Saturday's event at Camp Pendleton, officials said.

The U.S. military demonstration that shot live-fire artillery rounds over Interstate 5 on Saturday dropped metal shrapnel on a California Highway Patrol vehicle, resulting in damage, agency officials said Sunday.

California Highway Patrol officials say that a patrol vehicle was struck by shrapnel from an artillery round that was fired during Saturday's live-fire event at Camp Pendleton to celebrate the U.S. Marine Corps' 250th anniversary.