A 49-year-old woman died Thursday morning in a one-vehicle crash east of Whitewood.

The name of the one person involved is not being released pending notification of family members.

Preliminary crash information indicates a 2002 Mercury Sable was eastbound on Interstate 90 when the vehicle went off the roadway and rolled. The driver was not wearing a seat belt and was thrown from the vehicle. She was pronounced dead at the scene.

South Dakota’s Highway Patrol is investigating the crash. All information released so far is only preliminary.