Shrapnel from Marines anniversary demonstration detonates over California interstate and hits squad car, highway patrol says

An artillery shell fired as part of the Marine Corps’ 250-year anniversary celebrations prematurely detonated over Interstate 5 in California Saturday, striking a patrol vehicle with shrapnel, according to the California Highway Patrol.

​ An artillery shell fired as part of the Marine Corps’ 250-year anniversary celebrations prematurely detonated over Interstate 5 in California Saturday, striking a patrol vehicle with shrapnel, according to the California Highway Patrol. Read More Breaking News, Latest News and Videos | CNN