Police are appealing for information to identify a driver of a grey car after a man was found collapsed on a road in Thornton Heath.
At approximately 14:00hrs on Wednesday, 7 March, a 68-year-old man was found lying on the ground in London Road. It is believed he may have been hit by a slow moving car.
He was treated at the scene by the London Ambulance Service and taken to a south London hospital in a critical condition.
He remains in hospital where his injuries have been deemed life threatening.
Officers would like to speak to the driver of a grey people carrier who is believed to have been in the area at the time of the incident. The driver is described as a white man wearing a high visibility sleeveless jacket.
Detective Constable Sue Chalmers, from the Met’s Roads and Transport Policing Command, said: "The man has sadly suffered serious injuries as a result of this incident and I am keen to get to the bottom of exactly what happened.
"I believe the driver of the grey car stopped at the scene and helped direct traffic but left before the ambulance service arrived. I would like to speak to him as he may have more information about what happened in the lead up to the incident."
Anyone with information is asked to call police on 101 quoting reference CAD 4311/16 March.
To remain anonymous call Crimestoppers on 0800 555 111.