Six people were injured early Saturday in a multivehicle crash in rural east Clark County, according to the Clark County Sheriff’s Office.The crash was reported at 1:58 a.m. in the 24400 block of Northeast Rawson Road, near Northeast Hinness Road in the Proebstel area east of Hockinson, according to a sheriff’s office bulletin. Sheriff’s deputies and Clark County Fire District 3 responded.An investigation determined that Tyler A. Campbell, 23, of Vancouver was driving a 1998 Chevrolet K1500 full-sized pickup west on Northeast Rawson Road when he allowed the vehicle to drift off the road. Campbell brought the pickup back onto the pavement but crossed the centerline into oncoming traffic.The pickup crashed head-on into an eastbound 1998 Nissan Sentra, injuring three in the car, one seriously, before rolling onto its passenger side into the path of a westbound 1999 Ford F250, the bulletin said. Three passengers in the Chevrolet were also injured. Their names were not released.Alcohol is believed to be a contributing factor in the crash, according to the bulletin, which said Campbell was arrested and booked into the Clark County Jail on suspicion of vehicular assault.The crash remains under investigation by the Clark County Sheriff’s Office Traffic Unit.