A teenager has been killed and another is fighting for his life after a suspected gang knife attack in east London.
Detectives have detained a 13-year-old boy in the Leytonstone area of the capital.
The 14-year-old who was stabbed to death is the sixth youth to die in a knife attack in just a month.
His 15-year-old friend is in a critical condition in hospital.
The victims were attacked by a large gang of youths in the entrance of an east London tower block.
Police were called to Crownfield Road in Leytonstone shortly before 8pm on Friday after reports of two teenagers suffering serious injuries.
The attack came on the day a 22-year-old pregnant woman Krystal Hart was shot dead in a south-west London street.
Police have not named the teenagers but said both victims were black and lived in the Leytonstone area.
Detective Chief Inspector Matthew Horne said: “We understand a large group of youths were involved in an incident in the foyer of Gean Court, a block of flats in Langthorne Road E11, during which we believe the two victims were stabbed.
“It is believed they then managed to stagger the short distance to nearby Crownfield Road.
“A number of youths were seen running from the scene.”
Police say they are remaining open minded regarding the motive and circumstances of the attack.
Witnesses are asked to contact Crimestoppers anonymously on on 0800 555 111.
