A 16-year-old has been stabbed to death close to his home in south-east London.
Mohammed Dura-Ray was found with multiple stab wounds in Canterbury Place, Walworth, at about 22:10 BST on Monday. He was pronounced dead at the scene a short time later.
Seven males, including two teenagers aged 16, have been arrested in connection with the stabbing.
Scotland Yard's homicide team said one line of inquiry was that the stabbing was gang related.
Det Ch Insp Graeme Gwyn said: "I am appealing for anyone who witnessed this disturbance or has any information that may assist the investigation to contact us."
The boy is the 10th teenager to be fatally stabbed in the capital this year and the third this month.
Mohammed, who was known as Mo, was a Manchester United fan and a "typical boy", his aunt Haja Sesay said.
He died across the road from his home on the Aylesbury estate, but his family said they had no idea what he was doing when he died.
She said: "He hadn't talked to anybody about any problems. We don't know what really happened, what went wrong, whether it was gang-related, or a case of mistaken identity."
He had "good" friends and "bad" friends and sometimes hung around "with the wrong people" but was "typical of children today", she added.
Young deaths in London
A total of 14 teenagers have been killed in London in the past 12 months, 12 of whom were stabbed.
Out of the 14:
- 12 were stabbed to death
- One was shot dead
- One boy died after allegedly being deliberately run over.
The victims were aged between 15 and 18 and in three cases people have been convicted of murder, while in eight cases people have been charged with murder.
In three cases, including the latest, suspects have been arrested but no-one has been charged or convicted.
Walworth resident Pearl Francis said: "[My daughter] told me that she saw the forensics people up there, so then I came out. I stood there and I just thought that it's sad."
Asked whether she thought a lot of teenagers carried knives on the estate, she said: "I believe so. It is disgusting.
"It is time this stops. I don't know what it is going to take for them to stop it.
"He's 16. What could he have done so bad that you would kill him?"