A cyclist has been killed following a hit and run collision with a car in Croydon, south London.
The cyclist was given first aid, but died a short time later.
Officers are currently trying to contact his next of kin, and he has not yet been identified publicly.
The car failed to stop at the scene.
Now detectives are appealing for anyone with dashcam footage or who witnessed the crash to come forward.
Roads and transport police are investigating and urgent enquiries are underway to identify the car and its driver.
Anyone with information is asked to call the Serious Collision Investigation Unit on 020 8285 1574 or via 101 quoting reference CAD 737/30May.