Boy, 16, stabbed to death in south-east London

A 16-year-old boy has been stabbed to death in south-east London, Scotland Yard has said.

Police were called at 1700 BST to reports of a stabbing in Upper Wickham Lane, Welling.
The boy was taken to a south London hospital where he later died. Police believe they know his identity but his next of kin are yet to be informed.
A man has been arrested and remains in custody at a south London police station.
A Metropolitan Police spokesman said: "Officers attended and a 16-year-old boy was taken to a south London hospital where he died at 1810 BST."
Officers from the homicide and serious crime command have been informed, he said.
The spokesman said the police were called by the London Ambulance Service (LAS).
'Horrified' A spokeswoman for LAS said: "We were called just before 1700 BST to Upper Wickham Lane in Welling to reports of a stabbing.
"We sent the air ambulance as well as two ambulance crews, a single responder and a duty officer.
"Our staff treated a 16-year-old male and he was taken by road ambulance to hospital."
The scene, outside a branch of Superdrug, was still sealed off by police on Friday night.
David Walker, 83, said a bike and crash helmet lay on the ground within the area being guarded by police.
He said: "We were horrified.
"Nobody could say it's quiet around here but nothing like this has happened here before."