The Audubon County Sheriff’s Office reports a local teen was injured Friday evening during a single-vehicle rollover accident just east of the Audubon City limits. 16-year old Riley Thomas Christensen, of Audubon,  was driving a 1992 Pontiac westbound on 200th Street at around 6:25-p.m. Friday, when he lost control of the car.  The vehicle entered a ditch and rolled an undetermined number of times before hitting a power pole and landing in a field on the north side of the road. Christensen was taken to the Audubon County Memorial Hospital by Audubon Rescue. Damage to the car was estimated at $5,000. The report didn’t indicate if any charges were filed.