SAN DIEGO (KSWB) – Metal shrapnel from explosive ordnance that was fired over Interstate 5 in Southern California during a U.S. Marine Corps live-fire training demonstration on Saturday struck a California Highway Patrol vehicle, authorities said.

The live-fire exercise was part of a major event at Camp Pendleton in honor of the U.S. Marine Corps’ 250th anniversary, and was attended by Vice President JD Vance.

California Gov. Gavin Newsom had objected to the exercises, calling the military's plans to fire live artillery over the freeway irresponsible. He also said the state had received notice from organizers that signs should be posted along the I-5 freeway to alert drivers of “overhead fire in progress.”

Newsom instead closed a 17-mile stretch of I-5 connecting Los Angeles and San Die

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