On Saturday, Oct. 18, a 155‑mm shell fired during a Marine Corps display over California’s I‑5 blew up outside the safety zone, sending shrapnel onto a cruiser carrying Vice‑President J.D. Vance and two officials.
Explosion During Marine Corps Display
The California Highway Patrol reported that on Saturday, Oct. 18, a 155‑mm artillery round fired as part of a Marine Corps demonstration over the I‑5 highway detonated in the air outside the designated safety zone. Shrapnel fell onto a cruiser that had been parked nearby.
Fragment Impact on Vice‑President’s Vehicle
The cruiser, carrying Vice‑President J.D. Vance and two officials, was part of the security detail for the event. The shell’s fragments struck the vehicle, but no injuries were reported.
Comments from CHP Chief and Defense Officials
CHP Chief Tony Coronado called the incident “unusual and unsettling,” adding that as a former Marine infantry soldier he respects the military but prioritizes California citizens’ safety. U.S. Secretary of Defense Pete Hegseth also attended the demonstration.
Tensions Between State and Federal Authorities
The event aggravated tensions between California officials and the Trump administration. Governor Gavin Newsom had closed a segment of the highway before the display, citing the maneuvers as too risky.
Vice‑President’s Office Denies Missteps
Vance’s office rebuffed the allegations, stating the demonstration was conducted safely and in accordance with established protocols. A spokesperson said Newsom “once again demonstrates strong leadership.”
Marine Corps Investigation Underway
Marine Corps officials said the use of live munitions at Camp Pendleton is routine for readiness exercises. A spokesperson, Captain Gregory Dreibelbis, confirmed that the incident is being thoroughly investigated. He noted the display had passed a rigorous safety review, and further firing was halted after the event.
