California will close part of Interstate 5 today after military officials confirmed Saturday that live-fire artillery rounds will be shot over the freeway during a Marine Corps event.

Report also recommends after action review on communications and coordination with federal and local government agencies on rare live fire military exercise over civilian infrastructure

I-5 closes 11 a.m.–3 p.m. for Marine Corps 250th anniversary live-fire demo at Camp Pendleton; expect major SoCal traffic delays.

An artillery round exploded over Interstate 5 at Camp Pendleton, cutting short the military's live-fire exercise.

CHP reports that a section of Interstate 5 in San Diego — from Harbor Drive to Basilone Road in Oceanside — will be closed from about 11 a.m. to 3 p.m

Marines are investigating after a 155mm artillery round exploded over Interstate 5, hitting California Highway Patrol vehicles with shrapnel.

Traffic delays could be significant Saturday with the U.S. military planning to fire live artillery rounds over Interstate 5 in Southern California. The freeway will be shut down temporarily Saturday afternoon.

The mishap, during an anniversary celebration for the Marine Corps attended by the vice president and defense secretary, underscores safety concerns that Gov. Gavin Newsom voiced before Saturday’s event at Camp Pendleton.

The Marines are gearing up for their 250th birthday Saturday with a high-octane amphibious demonstration at Camp Pendleton's Red Beach, featuring amphibious vehicles storming the