Several people hospitalized following crash on Highway 180 in Fresno County

FRESNO COUNTY, Calif. (KFSN) -- The California Highway Patrol is investigating how two cars went through a guard rail.

The crash happened around noon in Fresno County on Highway 180 near Fulton Street.

Officers say for an unknown reason a station wagon and a sedan collided on the right-hand shoulder of the freeway.

Both cars went through the guard rail.

Investigators say several people were hospitalized but it's unclear what led up to the crash.

Those taken to a hospital had moderate to major injuries.

The crash slowed down traffic in the westbound lanes for hours.