A single-vehicle accident on Mountain View Road at Adams Road in Trion caused a temporary lane closure Wednesday night. The incident involved a vehicle that overturned into a culvert, resulting in water entering the vehicle. Initial reports indicated possible entrapment, but a passing pedestrian stopped to assist the driver before emergency responders arrived. The Trion Fire Department arrived on the scene shortly after, and firefighters successfully and safely extricated the driver from the wrecked vehicle. The accident is still under investigation.