SUMPTER, Wis. (WFRV) – A 39-year-old Iowa woman died Sunday afternoon, and a juvenile passenger was hospitalized following a high-speed crash on U.S. Highway 12. Shortly before 4:00 p.m., the Sauk County Sheriff's Office responded to a single-vehicle crash near U.S. Highway 12 and Groth Road in the town of Sumpter. Suspect arrested after shooting and killing young man in Town of Geneva Upon arrival, deputies found the vehicle off the roadway in a wooded area. The driver, a 39-year-old woman from Dubuque, Iowa, was pronounced dead at the scene. A juvenile passenger was trapped inside the vehicle with serious injuries. Emergency responders freed the passenger, who was then airlifted to a nearby hospital for treatment. Driver killed after being ejected from their vehicle during a crash in Marinette County Based on roadway evidence and witness statements, authorities believe excessive speed contributed to the crash. No additional details were provided.