Interstate 5 from San Clemente to Oceanside has long been one of California's traffic choke points, with no other nearby alternative routes between Los Angeles and San Diego. So traffic delays could ...

Interstate 5 is a major route for illegal marijuana trafficking through Shasta and Siskiyou counties in Northern California.

Gridlock reigned Saturday on one of California's most vital freeways after state officials closed a 17-mile stretch of Interstate 5 in response to a pre-planned event in which live-fire artillery ...

A vital 17-miles stretch of Interstate 5 in Southern California was cut for hours Saturday after military officials confirmed that live-fire artillery rounds will be shot over the freeway during a ...

California lawmakers are demanding answers after a live fire demonstration over Camp Pendleton Saturday led to a misfire that rained shrapnel on Interstate 5, striking two 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, ...