The U.S. Marine Corps identified the pilot killed in last week's helicopter crash in the California desert as Maj. Tyler R. Braconi, a 35-year-old California native and decorated Marine aviator based at Camp Pendleton.

While no one was hurt, experts say the decision to fire live munitions over the freeway during the ceremony was highly unusual.

A Marine Corps live-fire demo at Camp Pendleton celebrating its 250th anniversary accidentally sent shrapnel onto the I-5, striking a CHP vehicle.

The artillery rounds were fired over Interstate 5 near Camp Pendleton in San Diego as part of a military demonstration for the Marine Corps' 250th anniversary.

The U.S. Marine Corps' live-fire from Camp Pendleton as part of its 250th birthday celebration will cause Interstate 5 to be closed for four hours on Saturday.

Saturday’s local event for the Marines Corps coincides with another round of “No Kings” marches in San Diego and nationwide.

Shrapnel rained down over a California highway and struck a patrol car after an artillery shell exploded “prematurely” during a US military demonstration for the United States Marines’ 250th anniversary.

A 155-millimeter artillery shell detonated prematurely over Interstate 5 during a Marine Corps live-fire demonstration at Camp Pendleton.