Police in Lancashire have named a man who died after an incident in Kirkham.
Officers say that they believe he was Andrew Dean, who was 46 and from Wesham.
Emergency services were called to the junction of Freckleton Street and the Kirkham Bypass yesterday afternoon.
They found Mr. Dean in the road suffering from head injuries, and he as pronounced dead at the scene.
Detectives believe he had been driving a white Renault Master van westbound on the A583 when he was involved in an altercation with another motorist driving a metallic blue Nissan Micra car.
Both vehicles later stopped close to the junction with Freckleton Street and Mr Dean got out of the van to speak to the Nissan driver. It is believed the Nissan then collided with Mr Dean who suffered fatal injuries.
At around 4.45pm police stopped a blue Nissan Micra between junctions 6 and 5 of the M61 and arrested four people.