Helicopter being towed by truck strikes overpass, tumbles into traffic on California freeway

A helicopter being towed behind a truck struck a freeway overpass and tumbled off its trailer into the roadway, hitting at least two vehicles in Southern California.

The California Highway Patrol says the crash happened Friday morning on Interstate 15 near Fontana, in San Bernardino County.

The military-style helicopter landed upright partially on the shoulder, with its broken overhead rotors slumped onto the asphalt.

Transportation officials say the helicopter is a prop used in movies.

The CHP says the chopper hit at least two cars. The extent of the damage to the vehicles and the overpass wasn't immediately known.

No injuries have been reported.