TEMECULA, Calif. -

Three people were injured today when a small Bobcat tractor rolled 500 feet down a hill in Temecula, a county fire department spokesman said.

The accident was reported about 9:10 a.m. at Via Industria and Rio Nedo Road. Three patients were transported to a hospital, one with moderate injuries and the other two with minor injuries, Riverside County Fire Department spokesman Mark Annas said.

Another fire department official said the accident may have happened near a construction site. It was unclear if all the victims were riding on the tractor or if anyone on the ground was hurt.