A teenage girl has died and another is fighting for her life following an early hours crash between an BMW and a Mini in north-east London.
Police were called to Chigwell Road in South Woodford, Redbridge, shortly after 1am on Saturday.
Emergency services originally said a woman in her 30s had died, but it was later confirmed that the victim was a teenage girl. Her sister was left fighting for life in hospital.
They were seated in the Mini when the crash happened, police said. Scotland Yard did not immediately confirm who was driving.
A man driving the BMW has been treated for head injuries, a spokesman added.
Detectives from the Roads and Transport Policing Command are investigating and officers have appealed for anyone who saw the collision to come forward.
There have been no arrests, police said.
Contact the Serious Collision Investigation Unit at Chadwell Heath on the witness appeal line on 020 8597 4874.
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