A second man has died following a road traffic collision in Carshalton.
Police were called at approximately 17:40hrs on 30 December 2015 to reports of a collision involving two cars on Little Woodcote Lane, Carshalton.
The London Ambulance Service also attended and the driver of one of the cars, a 69-year-old man, was pronounced dead at the scene. Next of kin have been informed.
Two occupants of the other car involved - the male driver and a female passenger - were taken to hospital.
The driver, a 68-year-old man, died in hospital on Saturday, 9 January. Next of kin have been informed.
Formal identification has not taken place.
The female passenger remains in hospital in a serious but stable condition.
Officers from the Serious Collision Investigation Unit are investigating.
Anyone who witnessed the collision, or the events leading up to the collision, is asked to contact police on 020 8543 5157.