Officers are appealing for witnesses and dashcam footage after a man was seriously injured in a collision in Hillingdon.
Police were called just before 1:20pm on Sunday (10 October), to reports of a collision involving a car and a moped at the junction of Dickens Avenue and Harlington Road.
The man who was riding the moped was taken to a west London hospital with serious injuries. He remains in a life-threatening condition. His next of kin have been informed.
The driver of the car stopped at the scene and assisted officers with their enquiries.
No arrests have been made.
Officers from the Serious Collision Investigation Unit are appealing for any witnesses or drivers who were in the area with dashcam footage to come forward. You can get in touch by calling 101 quoting CAD 3817/10Oct. To remain anonymous contact Crimestoppers on 0800 555 111.