Police are appealing for information after confirming a 21-year-old man was stabbed to death in an “extremely violent” attack in Shoot Up Hill, Kilburn yesterday afternoon.

Police and ambulance services were called to a tower block in Watling Gardens at 2:43 pm following reports of a man suffering from a stab injury.

The man was pronounced dead at the scene at 3:06 pm.

Officers from the Met’s homicide and major crime command are appealing for anyone who witnessed either the stabbing or the events leading up to the incident to come forward.

Detective Chief Inspector Andy Partridge, of the HMCC, said: “This was an extremely violent incident that resulted in the loss of a young man’s life.

“The attack took place in broad daylight in an area where there would have been many people around. I appeal to anyone who witnessed this incident to contact us to help us piece together a picture of events leading up to this murder.”

The man’s next of kin have been informed but formal identification is yet to take place.

An incident room has opened under the homicide and major crime command (HMCC) and no arrests have been made.

Anyone with information is asked to contact the incident room direct on 020 8358 0300 or via 101. To remain anonymous call Crimestoppers on 0800 555 111 quoting reference number 1926174/15.