A teenager was stabbed to death in a west London shop as he tried to hide following a fight, witnesses have said.
The victim, believed to be 18, was attacked in Uxbridge Road, Shepherd’s Bush, on Wednesday night.
Local resident Derek Parks said the man had gone into the store “for cover” but he was followed by a man who had a knife and stabbed him.
The Met said officers had attended along with paramedics at about 21:20 BST but the man died at the scene.
Mr Parks said the fight happened “outside the shop doorway and the gentleman came in from outside”.
“The guy who got stabbed went towards the basement of the shop and was hiding,” the 64-year-old said.
Shopkeeper Sully Singh said he had received a call from his night staff at about 21:45 and had found a police cordon in place when he arrived.
“When I came here everyone was shocked. They said an incident had happened. There was a fight,” he said.
Another man suffered non-life-threatening injuries in a stabbing in nearby Notting Hill earlier on Wednesday evening.
The man was stabbed just after 19:00 on St Ann’s Road and police were “neither linking nor ruling out” a connection between both attacks.
No arrests have been made.
One local man, who did not want to be named, told the BBC: “I just told my kids to stay indoors. If you don’t have to go in the road, don’t have no argument with no-one because you don’t know. It could be any one of us.”
Det Insp Luke Wyllie said: “A young man’s life has been tragically cut short.
“Our thoughts are with his friends and family at this very difficult time. We are doing everything we can to apprehend those involved.
“Extra police and specialist units are working on the ground now to build a clearer picture of what took place and work to protect and reassure those in the local community.”
A Section 60 order – which gives police the power to stop and search people in a designated area – has been put in place in Shepherd’s Bush and Notting Hill until Thursday afternoon.
Police are in the process of informing the teenager’s next of kin and a post-mortem examination will be held in due course.