A man was stabbed to death in front of horrified shoppers on Oxford Street.
The incident occurred at a junction between Oxford Street and Market Place just after 5.30pm on Saturday.
Shocking footage from the scene shows stunned shoppers reacting to the incident.
One witness, Benjamin Teacher said he saw a man armed with a machete chasing another man.
"Someone was running down the middle of Oxford Street in broad daylight on a Saturday with a machete, chasing someone", he said. And now police everywhere because this is London!"
Police attended the scene and found a man suffering from a stab wound. He was taken by the London Ambulance Service to a central London hospital where he was pronounced dead at 7.33pm.
Three arrests have been made.
Anyone with information is asked to call police via 101 quoting reference Cad 6404/08Aug.
