Bolivar County Assistant Coroner Murry Roark pronounced Shelby D. Harmon, 20, of Cleveland dead on the scene.
Harmon was a 2010 graduate of Cleveland High School.
According to the Bolivar County Sheriff's Department's dispatch log, a call came into the department at approximately 6:10 Saturday morning by a woman traveling north on U.S. Highway 61 stating that she had hit an object in the road and thought that it was a body.
Deputies were dispatched to the scene and immediately contacted the Mississippi Highway Patrol. In the meantime, the department received numerous other calls about the incident.
"I got the call at around 6:20 a.m.," said Sgt. Mike Mullins of the Mississippi Highway Patrol.
Mullins went on to say that when he arrived on the scene it became apparent that several different vehicles struck Harmon, including that of her boyfriend Rodney Shelton Fulgham.
"At this time it is difficult to tell which impact killed her," Mullins added.
Fulgham, 23, with addresses in Cleveland and Shaw, also called the 911-dispatcher to report the incident although he had traveled a significant distance after impact.
Mullins said Fulgham was taken into custody for questioning and later released.
"I have taken statements from Fulgham and three other witness," said Mullins. "I expect the Highway Patrol to send out a team of accident re-enactment investigators on Monday or Tuesday."
Mullins added that while the investigation is still active, no charges have been filed at this time.
"It is the policy of the MHP that we don't file charges until an investigation has concluded and all test results have returned," said Mullins. "While no charges have be filed at this time, I do expect that charges will follow at a later date when all the evidence has been evaluated."
Michael Lamb, chief deputy for the Bolivar County Sheriff's Department said that the department would be working with the Mississippi Highway Patrol with any needs that they may have during the investigation.
The Bolivar Commercial will have more information on this case as it becomes available.