A 16-year-old boy has died following a stabbing in north-west London.
The Metropolitan Police were called to Munster Square in Camden at about 11.10pm on Monday.
The victim was pronounced dead at the scene.
Police said a murder investigation had been launched and that inquiries into the circumstances were ongoing.
No arrests have been made.
A man who lives near to where the attack took place said he saw the boy’s body covered and lying near a neighbour’s doorstep.
The man, who did not want to be named, said: “I saw a lot of people here, ambulance, police and our community people.”
The square has recently become a hotspot for drug taking and large groups of men regularly gather there, he added.
Any witnesses or anyone with information is asked to call police on 101, quoting incident number CAD8433/12Aug.
At the scene on Tuesday morning, a large police cordon remained in place, and stretched across a number of nearby roads.
In Munster Square, a first aid bag could be seen on the pavement close to a bollard, with white sheeting on the ground outside one of the flats.