Detectives are appealing for witnesses following a collision that has left an elderly woman seriously ill in hospital.
Police were called at 1:42pm on Friday (3 December) to reports of a road traffic collision on the Bath Road in Hounslow.
Officers and London Ambulance Service attended. At the scene two pedestrians had been in collision with a bus.
An 81-year-old woman was taken to hospital, where she remains in a serious condition. Her family are aware.
A man who was also injured has since been discharged from hospital.
The driver of the bus stopped at the scene and there have been no arrests.
Anyone who witnessed this collision or has footage should call police on 020 8543 5157 or 101 or Tweet @MetCC quoting 3597/03DEC.
To remain 100% anonymous call the independent charity Crimestoppers on 0800 555 111.
