The female motorist who died Friday after she was found on a roadway in the Mount Vernon area had an argument with another driver in traffic and then was run over, Fairfax County police said Saturday.

Police identified the victim as Shelinda Delores Arrington, 21, who lived a few blocks from where the incident occurred. According to the Office of the Chief Medical Examiner, Arrington sustained crushing injuries to her skull.

About 11:30 a.m. Friday, police responded to a report of a woman lying in the 7100 block of Harrison Lane. Police said Arrington was unconscious when they arrived. She was taken to a hospital, where she died.

Police said they believe Arrington had gotten out of her car and began a discussion with the other driver. Police said they are investigating whether Arrington and the other driver knew each other before the confrontation or road rage was involved with her death.

Fairfax County police spokesman Don Gotthardt said detectives are looking for a dark-colored sport-utility vehicle with temporary tags. He declined to comment further.

On Friday, police closed off Harrison Lane for several hours while investigating the incident. A light-colored Buick sedan was towed from the scene. Police said they interviewed a third motorist, who drove a light-colored SUV and may have been involved.

Patricia Wells, a resident in the block where Arrington was found but did not witness the alleged altercation, said Saturday that both light-colored vehicles were facing northbound toward South Kings Highway. There was no apparent damage to either vehicle, she said .

Police said those with any information on the incident should contact them at 703-691-2131.

Staff researcher Eddy Palanzo contributed to this report.