Officers in Sheffield are appealing for witnesses to a fatal collision that happened on Handsworth Road on Friday 7 December.
At around 12.15pm a motorcycle was in collision with a pedestrian near to the Shell petrol station.
The pedestrian, a 75-year-old woman, was taken to hospital with life-threatening injuries, where she sadly died several days later (13 December).
Officers want to hear from anyone who witnessed the collision.
They would particularly like to speak to a man who was walking his dog near to the petrol station at the time. He is thought to have been wearing a brown jacket.
If you have any information that might help us, please call 101 quoting incident number 368 of 7 December 2018.