A 15-year-old who cannot be named due to his age has been charged with the murder of an 18-year-old man after the victim was found stabbed to death on the street in east London.
On Monday (1), the boy was due to be presented before the magistrates in Barkingside, Scotland Yard said.
On Harrow Road in Ilford just before 4am on Thursday, police was reported of fights, where Kamran Khalid, 18, was found with multiple wounds. He was declared dead at the scene after half an hour.
Detectives say there were people present when Khalid was stabbed to death.
"We are currently in the very early stages of our investigation and are working quickly and diligently to establish the circumstances that led to the death of this young man.
"An arrest has been made, but we believe that a number of people were present when the victim was murdered and we need to identify those people.
"The altercation took place in the middle of the night and while I know that few people will have been on the street at that time, I am keen to hear from anyone who may have witnessed the events leading up to and including the murder.
"Any information, no matter how small, could be significant to the investigation, please do get in touch," detective chief inspector Joanna Yorke, who is leading the murder investigation, was quoted as saying.
Detective chief superintendent Paul Trevers, of the Met's East Area Command, said: "We are deeply saddened that another young life has been lost to knife crime and we understand the shock that local residents will feel at this dreadful news.
"A crime scene is in place in Harrow Road and local officers are supporting our Homicide colleagues as they conduct their investigation.
"The community will notice a heightened police presence in the area with both foot and mobile patrols increased to provide local reassurance.
"Anyone who has concerns is encouraged to approach patrol officers, or, if you have information, please don't hesitate to contact us."
Bob Blackman MP speaks during the event