Police were called at 4.20pm on Tuesday, 9 November to reports of a collision involving a car and a pedestrian on Tooting High Street
Officers and London Ambulance Service [LAS] attended.
The pedestrian, a woman believed to be in her twenties, was taken to hospital by LAS and we await an update on her condition.
A man was arrested on suspicion of possession of criminal property. He remains in police custody.
A number of roads are closed in the area.
Anyone who witnessed this incident or has footage should call police on 101 or Tweet @MetCC quoting 5095/9NOV.