Police are appealing for witnesses to a collision in Storrington that left a pedestrian with life-threatening injuries.
Officers were called to reports of a man lying in the road on the A283 Manleys Hill, Storrington, at 22.52pm on Monday (July 12).
He was believed to have been involved in a collision with a vehicle which had then left the scene.
The road was closed at the junction with Chantry Lane while the victim - a 21-year-old local man - was treated by paramedics from South East Coast Ambulance Service.
He was taken to Royal Sussex County Hospital with life-threatening injuries.
Investigating officers traced a vehicle believed to have been involved in the collision and its driver - a 53-year-old man local to the area - was arrested.
The road was reopened shortly after 6am on Tuesday morning (July 13).
Anyone who witnessed the incident or has any information which could help with the investigation is asked to contact email@example.com or call 101 quoting Operation Hailing.