One person was killed Tuesday night in a Walworth county fatal crash. According to the Department of Public Safety, the incident involved one vehicle and killed a teenager who was driving the vehilce. The other teen passanger was injured in the incident. The vehicle was southbound on 10th avenue west in Mobridge when the driver, a 16-year-old girl lost control flipping the vehicle. The driver was pronounced dead at the scene while the 15-year-old male passenger suffered life-threatening injuries and was ultimately air lifted to Fargo. The driver and male passenger were flung from the vehicle, neither was wearing a seatbelt.