Police are appealing for witnesses and dash cam footage following a fatal collision in Balham on Tuesday, 10 September.
Officers were called by the London Ambulance Service shortly before 19:00hrs to reports of a motorcycle in collision with a pedestrian on Bedford Hill, SW12.
The rider and pedestrian were both taken to a south London hospital.
The pedestrian, a woman aged in her early 50s, has died from her injuries. Her next of kin have been notified.
The rider of the motorcycle, a man aged in his late 50s, suffered minor injuries.
Officers from the Serious Collision Investigation Unit ask anyone who witnessed the incident or has any dash cam footage around that time to call the SCIU witness line on 020 8543 5157 and quote CAD 6542/10 Sept.