Six teenagers arrested over a fight in Camberwell that left four boys with stab wounds have been released on bail.
The boys were injured after violence broke out outside Landor House on Thursday.
Two of the four victims remain in hospital, both in a stable condition.
Five teenagers were released without charge while one, a 15-year-old has been charged with possessing a blade and cannabis, according to Scotland Yard.
They had all been arrested on suspicion of violent disorder and grievous bodily harm.
The crime scene was left littered with bloodied clothing, trainers and medical equipment after the clash.
The boys, all thought to be 15 or 16, were attacked as fighting between two gangs broke out on a Camberwell estate, just minutes away from where drill rapper Sidique Kamara, known as Incognito, was stabbed to death earlier this month.
Residents said they saw a group of up to 30 boys during the violence on the estate.
She said: "My friend and I came downstairs and we saw boys running across the grass. Then we heard someone screaming and we followed the sound.
“We saw two police officers who were first ones there and helping a young guy.
“One of the officers asked for my friend’s jacket to put pressure on the boy’s abdomen. There was a great amount of blood.
Detective Inspector Luke Williams appealed for the public's help to "bring those responsible to justice".
"This incident saw another act of serious violence on our streets and is unacceptable," he added.
The boy who was charged will appear at Camberwell Youth Court on September 5 while the others must return to a south London police station in mid-September, the force said.
Harriet Harman, MP for Camberwell and Peckham, said she was very concerned by the quadruple stabbing and was in contact with police and councillors.
Additional reporting by PA.
Read More
MORE ABOUT