A 16-year-old boy has died after being stabbed in a London street, the 18th teenager to be murdered in the capital this year.
Shakilus Townsend died in hospital overnight after the attack in Thornton Heath, south London, yesterday afternoon.
Police found him with a stab wound in the entrance to a block of flats after receiving a call from a member of the public. There were no arrests.
The killing follows a spate of murders of teenagers in the capital this year.
Another 16-year-old, Ben Kinsella, was stabbed to death in Islington, north London, last Sunday after a fight in a nightclub. Three teenagers were appearing in court yesterday charged with his murder.
Metropolitan Police Commissioner Ian Blair said he would do everything in his power to tackle the problem.
London Mayor Boris Johnson said he was shocked by the murders and had warned his children not to intervene if they see a fight in the street. "We must all work as hard as we can together to reverse this dreadful trend," he told a news conference earlier this week.
On Wednesday, police said they had arrested 1,214 people in London during a six-week crackdown on knife crime.