Aerial pictures of A24 murder scene

Police are hunting a man in his 30s who is suspected of stabbing to death a 79-year-old after a collision between their cars in West Sussex.

The alleged attacks happened on the A24 near Findon on Thursday evening. The victim died at the scene.

Police say they are looking for a a tall, skinny, white man in his 30s, is thought to have been driving the car in front of the man who was stabbed.

The BBC News helicopter took these pictures of the scene of the incident.