CCTV images have been released to help trace a hit-and-run driver who broke the neck and both legs of a cyclist in Brixton.
The incident happened at 12:15am on Saturday 5 March.
A 44-year-old male cyclist was taken to hospital with life-threatening injuries.
The car is described only as dark or black
Detective Sergeant John Hartfree from the Met's Serious Collision Investigation Unit said: "We need to locate the car involved and speak to the driver as soon as possible.
"The victim was left lying in the road having suffered very serious injuries.
"I would urge anyone who witnessed the collision or has any information, regarding the identity of the driver or whereabouts of the car to contact police."
Anyone with any information should call 020 8941 9011 or Crimestoppers anonymously on 0800 555 111.