Border Patrol arrested a U.S. citizen on Feb. 15 after finding four undocumented aliens in his truck during a vehicle stop west of Wellton, Arizona. From Breaking 911 YUMA, Ariz. – Border Patrol agents assigned to the Wellton Station arrested a U.S. citizen Feb. 15 after finding four undocumented aliens in his Chevrolet extended-cab pickup truck during a vehicle stop west of Wellton, Arizona. After agents stopped the truck near Old Highway 80 and 20 E, they detected individuals hiding in the cab. Agents then detained the 25-year-old male driver and passengers for processing in accordance with Yuma Sector guidelines.