A murder hunt has been launched after a teenager was shot dead in an apparent gangland hit.
Nana Darko-Frempong, 18, was blasted four times outside a block of flats last night before before his attackers sped away in a car.
Scotland Yard launched appeals for witnesses as forensic officers scoured the scene in Tulse Hill, south London.
The victim - the seventh teenager killed in the capital this year - died at the scene after being set upon in the grounds of Purser House at 11pm.
He is believed to have lived on the estate for about 10 years.
Scotland Yard's Operation Trident unit, which investigates gun crime in London's black communities, is investigating.
Detective Chief Inspector Gordon Allison appealed for witnesses to come forward.
He said: "We would urge anyone who may have seen or heard anything between the hours of 9.30pm and 11pm, or seen a suspicious vehicle in the area at the time of this murder, to contact us and assist us in this investigation."
Officers, who are yet to make an arrest, said paramedics were unable to resuscitate the teenager at the scene.
A spokesman said: "The victim's next of kin have been informed but we are yet to make a formal identification."
Chuka Umunna, Labour MP for Streatham, said he had been in "close contact" with police over the incident.
Mr Umunna said: "My condolences go out to his family and friends. This will have rocked them, and the wider community on the estate, to the core."
The death is the third killing in south London within the last fortnight.
Alper Pasha, 43, from Bermondsey, died in hospital after being attacked outside a KFC fast food outlet in Coldharbour Lane, Brixton, and Sadiq Adebiyi, 25, was shot dead outside the Stockwell Gardens estate.
:: Anyone with information is urged to call the incident room on 020 8247 4554 or Crimestoppers, anonymously, on 0800 555 111.