In north-west London, a boy was fatally stabbed in a street brawl in front of partygoers.
After a boisterous birthday celebration on Friday night, the teenager, who was 17, passed away at the scene in Granville Road, Brent, at about 11.30 p.m. A murder investigation has been opened.
A woman in her early 20s who sustained a hand injury and a second male, who was also thought to be 17 years old, were both taken to the hospital.
The Metropolitan Police’s Detective Chief Inspector Mark Rogers said: “We believe that there was a fight following a birthday party, which would have been attended by a number of people.
“I would urge anyone who was there, and who has not yet spoken with officers, to please come forward. It is vital that we establish what happened.
“I would also ask that anyone who may have captured any of last night’s events on their phone to also contact officers.”
Although the teenager’s family has been notified, no arrests have been made as of yet.
Chief Superintendent Dan Knowles said: “I know that the community will be shocked by this incident in which a young man has lost his life.
“We shall be working with our colleagues from Specialist Crime to ensure that this investigation proceeds as quickly and thoroughly as possible.
“Local residents can expect to see an increased police presence in the area and I would encourage anyone with information, or concerns, to speak with them.”