A 27-year-old Kennewick man is being sought by Benton County sheriff's deputies after threatening his former girlfriend's new boyfriend and running over him with a van.

Benton County sheriff's deputies were called Wednesday night to a home at 5905 S. Havana St., after the victim's girlfriend reported he had been run over, said Deputy Joe Lusignan.

When deputies arrived, Brandon Joseph Honeycutt, 27, was found face down on the driveway. He was suffering from potential internal and head injuries and was taken to Kennewick General Hospital for treatment, Lusignan said.

Deputies learned the incident happened after an argument between two couples. The suspect, who was in a mini-van, allegedly grabbed Honeycutt's arm and dragged him for about 50 feet before letting him go, Lusignan said.

When Honeycutt was let go, he was then reportedly run over by the Plymouth Voyager, he said.

Deputies have not been able to find the suspect, but have forward their report to prosecutors to review for possible charges of first-degree assault and felony harassment to kill, Lusignan said.

The suspect is not being named because he has not been arrested or charged.