A 66-year-old man was taken to hospital in a critical condition after being hit by a car.
Police were called to Sudbury Court Drive, in Harrow, at 7.10pm last night (Tuesday, March 14), where they found the man.
He was taken to a West London Hospital and his family have been informed.
The driver of the car involved stopped at the scene of the collision and is assisting officers with their enquiries.
No arrests have been made.
Anyone with information should call 020 8991 9555