Tow truck driver in hospital after driving off cliff

FRESNO, Calif. (KFSN) -- It happened just after 3:30 p.m. on Highway 168 near Auberry Road.

One of the lanes of the four lanes was closed for more than an hour, as crews worked to pull the truck back onto the road.

It is not clear what caused the driver to go off of the road, or if any other vehicles were involved.