The Grant County sheriff’s office says at least four people have been injured at the Gorge Amphitheater campground in George, Wash., the Associated Press reported.

KHQ-TV reports (http://is.gd/uuEBxl ) a 19-year-old drove his car through the campground on Saturday morning (May 23) and hit pedestrians, tents and parked vehicles.

Kyle Foreman of the Grant County sheriff’s office says the injured were taken to Quincy Valley Hospital and at least two appeard to be seriously injured but none of the injuries was life-threatening.

Foreman says they are investigating the incident and have arrested the driver. It was not clear if drugs or alcohol were a factor.

The Gorge Amphitheater hosted the Sasquatch! Music Festival over the Memorial Day weekend. Camping at the amphitheater is part of the festival.