A mother has died and her baby was left fighting for his life after they were hit by a car.
The woman, believed to be in her 20s, was with her son, believed to be eight months old, in a pram when they were struck by the vehicle in Penge, south London.
The Metropolitan Police said it was called to the scene on Croydon Road at 8.08pm on Sunday evening.
"A car was found to have been involved in a collision with a mother and a baby in a pram," the force said.
"Despite the efforts of officers and paramedics, the mother, believed to be in her 20s, was declared dead at the scene."
"The baby, believed to be eight months old, has been taken to hospital.
"His injuries have been assessed as life-threatening," the force added.
The driver of the car stopped at the scene and was taken to hospital with non life-threatening injuries.
He has not been arrested and was said to be helping police with their inquiries.
Road closures have been put in place as investigators examine the scene.
- Witnesses or anyone with any information was asked to call police on 101 or Crimestoppers, anonymously, on 0800 555 111.