A man is in a life-threatening condition following a crash in Greenford on Saturday (May 27).
Metropolitan Police has launched an appeal following the collision in Whitton Avenue East around 4.05pm.
Police were called to reports of a white Volkswagen van in collision with a pedestrian.
Officers attended along with the London Ambulance Service and found the pedestrian, a man believed to be in his 20s, injured.
He was taken to a north London hospital and the police described his injuries as "life-threatening".
A spokesman for the Met Police said: "The driver of the van stopped at the scene. He was not arrested .
Detectives from the Serious Collision Investigation Unit (SCIU) based at Alperton Traffic Garage are investigating.
Enquiries continue into the full circumstances of the collision."
Anyone with any information, who witnessed the collision or who stopped to assist should contact the SCIU on 020 8991 9555.
To remain anonymous you can contact Crimestoppers on 0800555111.
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