Westbound lanes weren't affected. The state Department of Public Safety says responders searched unsuccessfully for hours along the highway near the Marana Road exit for a motorcycle rider. The DPS says the biker was thrown from his bike after a collision with another vehicle and several vehicles then struck the motorcycle, which was found at the scene.
The search for the rider included draining a nearby canal. Hospitals and truck stops in the region have been alerted to watch for anyone requesting medical assistance for injuries consistent with a motorcycle accident.