Officers were called at 7.43am on Monday, 27 March tonear Stockwell Station, Clapham Road, SW9.
A pedestrian, believed to be a boy aged around 13, had been in a collision with a car.
London Ambulance Service and London’s Air Ambulance have attended the scene.
The boy’s next of kin have been informed.
Local road closures are in place while emergency services deal.
