A teenager has been stabbed to death during a disturbance involving youths on a north London street.
Police were called to the incident, involving a group of youths on Tollington Way, Islington, at 2030 BST on Tuesday.
Paramedics arrived and treated the youth - believed to be in his mid teens - but he died at the scene.
Witness Sadik Turan, 21, said the boy was chased by up to 10 youths who then attacked him.
Mr Turan described the victim as "the most sweetest kid ever" who was still at school.
"He was a brave heart. All he wanted to do was to be like his dad and to be a builder and now he isn't going to get the chance because of these teenagers," he said.
A police spokeswoman there were several witnesses and they were keeping an open mind about the motive for the attack.
She added: "We are in the process of informing his next of kin and officers from the Homicide and Serious Crime Command are at the scene."
She said it was not clear at this stage how many people were involved in the disturbance.
LONDON'S TEENAGE VICTIMS IN 2007
3 February - James Smartt-Ford, 16, shot in Streatham
6 February - Michael Dosunmu, 15, shot in Peckham
14 February - Billy Cox, 15, shot in Clapham
14 March - Kodjo Yenga, 16, stabbed in Hammersmith
17 March - Adam Regis, 15, stabbed in Plaistow
6 April - Paul Erhahon, 14, stabbed in Leytonstone
23 June - Annaka Pinto, 17, shot in Tottenham; Ben Hitchcock, 16, stabbed in Beckenham
The death is the latest in a series of killings involving teenagers in London.
On Saturday, 16-year-old Ben Hitchcock from Penge, south London, was stabbed to death in a fight involving up to 40 youths in Southend Road, Beckenham.
Fourteen teenagers were arrested in connection with the incident and were later released on police bail pending further inquiries.
Ben's murder followed the shooting of a 17-year-old girl during a fight at a bar in north London in the early hours of Saturday morning.
Annaka Keniesha Pinto died in hospital after being shot in the Swan bar in Philip Lane, Tottenham.
Three people were arrested in connection with the death and later released on bail.