One person died and another person was injured in a one-vehicle crash early Sunday morning east of Murdo

Names of the two people involved are not yet being released pending notification of family members.

Preliminary crash information indicates that a 2011 Ford Edge SUV was westbound on Interstate 90 when it left the roadway to the left, went into the ditch and eventually rolled.

The 20-year-old female passenger was thrown from the vehicle and pronounced dead at the scene. Her seat belt use is under investigation. The 21-year-old male driver, who was wearing a seat belt, sustained serious non-life threatening injuries. He was transported by ambulance to the Pierre hospital.

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