In a 666-page report, the Marines concluded that there "is no definitive answer" to why an M795 high explosive round ...

A vehicle fire along a major Los Angeles freeway early Tuesday morning prompted an investigation by authorities, though no ...

The electronic device that was used is manufactured to a standard of “one defect in a million,” and no human error was found, ...

The USMC has determined that a "one-in-a-million" malfunction in an artillery shell's fuze caused it to explode over Interstate 5 and strike a California Highway Patrol vehicle with debris during a ...

A semi fire is causing delays on northbound I-5 in the Grapevine. Two lanes are closed Tuesday for an unknown amount of time.

A natural gas line ruptured north of Los Angeles on the afternoon of Saturday Dec. 27, shutting down portions of Interstate 5, a heavily trafficked north-south route. The California Highway Patrol ...

A large high-pressure natural gas line ruptured Saturday in Castaic, north of Santa Clarita, prompting the California Highway Patrol to temporarily halt all traffic on the 5 Freeway. Lanes reopened at ...

Two people were killed and one was seriously injured in a wrong-way crash late Monday night on Interstate 5 south of County Road 8 near Woodland, CHP says.