Three youths are in custody after a boy was stabbed to death at a house party just days after celebrating his 16th birthday.
The victim, named locally as Nathaniel Brown, was murdered at a terraced house in south-east London in the early hours of Wednesday morning.
The youths aged 16 to 18 were arrested over the stabbing and remain in custody.
Emergency crews were called to the property in Launcelot Road, Lewisham, at 4am but the victim was pronounced dead shortly after 5.10am.
Distraught relatives of the teenager were too upset to talk about their loss. But friends paid tribute to the boy nicknamed "Natz", who turned 16 earlier this week, on Twitter.
"RIP Nathaniel Brown," said one. "May your soul rest in peace."
One neighbour who lives close to the scene was woken by screams in the middle of the night.
"It was around 2.30am and I heard these shouts and screams," said the woman, who did not want to be named. "It started to get louder and louder and when I got up to look out about 3.15am I saw all these people running away from the house. I went into a bit of shock then about what happened. I have been up since and haven't slept. It's just awful what's happened."
Neighbour Tyrone Simpson said people were stunned.
"This was a young kid. It's very sad. I've have young kids of my own and this boy was only 16. It's terrible," he said.
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