HESPERIA, Calif. (AP) — A helicopter being towed behind a semi struck a freeway overpass and crashed into lanes, hitting at least two vehicles in Southern California.

The California Highway Patrol says the crash happened Friday morning on Interstate 15 near the Mojave Desert city of Hesperia.

READ MORE: 49ers Fans Look to Make Noise, Boost Team at NFC Championship Game

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

The CHP says at least two cars were hit by the copter. The extent of the damage to the vehicles and the overpass wasn’t immediately known.

READ MORE: Solo Crash Friday Night Closes Moraga Road, Cuts Power to Hundreds

No injuries are reported.

Caltrans says the helicopter is a prop used in movies.

MORE NEWS: S.F. Supervisors Set to Designate Casa Sanchez Bldg. in Mission District a Historical Landmark

© Copyright 2015 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.