Deputies responded to the 300 block of Vinson Road just before 2:30 p.m. and found a woman lying in the roadway.
The woman was identified as 18-year-old Tebria Janee Frazier. She was pronounced dead at the scene.
Callers told authorities that Frazier had been riding on top of a white SUV before falling off and being run over.
The case remains under investigation and the sheriff's office did not release any additional details.