Artillery Round Detonates During Marine Corps Ceremony, Newsom Calls Display “Reckless”

A Marine Corps artillery round detonated prematurely during a live-fire demonstration at Camp Pendleton on Saturday, scattering shrapnel onto law enforcement vehicles and prompting the suspension of the event, officials said.

The Details: According to a California Highway Patrol (CHP) report, a 155-millimeter shell exploded in midair over Interstate 5 during the Marine Corps’ 250th anniversary celebration. Shrapnel reportedly struck a CHP vehicle, causing a dent and scratch on the hood, and a motorcycle assigned to Vice President JD Vance’s protective detail, though no injuries were reported. Defense Secretary Pete Hegseth was also in attendance. Marine officials confirmed a “possible airborne detonation” of a 155 mm round outside the designated impact area and said firing was immediately suspended under standard safety procedures. 

For Context: California Gov. Gavin Newsom had objected to firing live rounds over Interstate 5 and ordered a 17-mile closure between Los Angeles and San Diego during the event. Marine officials previously assured Newsom the demonstration was safe to keep the freeway open. Newsom called the display “reckless” and said the White House owed Californians an apology. 

How the Media Covered It: Straight Arrow News (Center bias) covered the investigation by the Marine Corps into the detonation. Washington Times (Lean Right) highlighted the back-and-forth between Newsom and President Trump about the event. It detailed the makeup of the artillery round and explained what might have caused it to detonate. Daily Beat (Left) emphasized Newson’s anger toward the White House and his concerns about safety.

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