UPDATE: Ethan Kirsch has been located unharmed in Charles Mix County.
Charles Mix County authorities are asking for the public's help in finding a missing teenager.
14-year-old Ethan Nicholas Kirsch was last seen Friday afternoon. Kirsch is from rural Platte. He's 5-foot-ten and weighs 125-pounds.
Kirsch was driving a maroon 2003 GMC Sonoma pickup. The pickup has a South Dakota license plate: 17EK34.
Anyone with information should call the Charles Mix County Sheriff's office at 605-487-7625.