MARSHFIELD -- The Fond du Lac County Sheriff's office is investigating a fatal single-vehicle accident that occurred Tuesday night, October 2nd on County Highway G near Willow Road in the Town of Marshfield.
Officials say the motorist was traveling west on Highway G when they took a curve and lost control of the vehicle, struck a driveway culvert and then slammed into a tree.
Police say a 26-year-old woman from the Glenbeulah area was pinned inside the vehicle and pronounced dead at the scene.
Authorities determined excessive speed as a factor in the crash.
Monitor FOX6 News and FOX6Now.com for updates on this developing story.