California ? Authorities say a man in Southern California riding a Christmas tree being dragged behind an SUV slammed into a parked car and was hospitalized with head injuries.

Orange County sheriff’s spokesman Jim Amormino says the 18-year-old and another teenager were Christmas tree surfing, a seasonal Internet fad.

Capt. Greg McKeown says the car was going about 25 mph Sunday night when the female driver took a corner and the tree veered wide and crashed.

Amormino says the driver fled. Two SUV passengers and the other tree surfer told deputies they didn’t know the girl.