(KNZA)--An elderly Winchester woman is dead following a single-vehicle crash Saturday night in Jefferson County. 

The Kansas Highway Patrol reports 83-year-old Connie Wistuba was driving northbound on 3rd Street at Winchester Street in Winchester when her Chevy Blazer drifted off the roadway for unknown reasons and struck a building. The crash occurred shortly before 10:30 p.m. 

Wistuba, who was alone in the vehicle, was pronounced dead at the scene. 

The Patrol says she was wearing a seatbelt at the time of the crash.