The Wyoming Highway Patrol says it's not clear if a woman who was fatally struck and hit by a vehicle near Lander was lying in the roadway or if she was walking.

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What the patrol does know is 39-year-old Thomasine Ridgely suffered severe head trauma and bodily injury in the August 3 incident, which still remains under investigation.

The accident happened on Plunkett Road, which is on the Wind River Reservation near Lander.

A preliminary investigation report doesn't specify the type of vehicle involved.

No further information has been released.