A teenage boy has died following a crash between a stolen moped and a marked police car. The 16-year-old boy died on Monday following the crash at around 2am on Sunday morning.
The bike he was riding, along with two other teenagers, was being monitored by the National Police Air Service helicopter and police on the ground at the time of the collision.
It was believed to have been involved in an earlier attempted robbery.
The Independent Police Complaints Commission is now independently investigating the incident, which saw the moped and marked police car collide at a junction in Trinity Road, Wimbledon.
Police have confirmed that the moped was travelling along South Park Road when it crashed into the side of a police car, which was being driven north along Trinity Road.
The bike had been reported lost or stolen to police on July 12.
All three boys involved in the crash were taken to a south London hospital for treatment to their injuries.
A second 16-year-old remains in hospital in a stable condition and a 15-year-old was released from hospital on Tuesday.
He was then arrested on suspicion of taking and driving away, failing to stop, possession of an offensive weapon and attempted robbery.
He remains in custody at a south London police station.
All three teenagers were initially arrested at the scene and two large knives were recovered.
The Directorate of Professional Standards was informed.