Footage of a motorcyclist who knocked down a pedestrian and then shouted at him before driving off has been released by Police.
CCTV shows the rider colliding with a man crossing a road in Sutton, London, as traffic begins to move off. He is knocked off his bike and the pedestrian is sent careering down the road.
The collision happened shortly before 12.30am on Saturday, 28 February as the male pedestrian was crossing Malden Road at the junction with London Road.
The pedestrian, aged 53, was taken to a south London hospital for treatment to his injuries and has has since been discharged.
Detective Sergeant Dave Jarvis of Sutton Police said: "It would have been obvious to the rider of the motorcycle that the pedestrian he had collided with was seriously injured. To act in the way he did, shouting at the unconscious man and driving off from the scene without attempting to seek medical help, was a truly heartless act."
There have been no arrests but enquiries continue.