errified shoppers were evacuated out of Brent Cross Shopping Centre after reports of a stabbing.
A 21-year-old man was stabbed to death after a fight broke out in the north-west London shopping mall at around 6.45pm.
Witnesses saw a defibrillator being used on the knife victim as he lay outside Marks and Spencers.
Footage shared on social media shows police escorting shoppers outside of the building and an air ambulance landing in the empty car park.
Reports have claimed that the stabbing happened inside the River Island store with multiple officers seen rushing in.
One witness told the Standard: “I just caught the aftermath, they had somebody on the floor behind some privacy screens outside M&S. They were using a defibrillator on him so it must have been serious. I saw the police detaining one young-looking guy, possibly a teen at the scene.”
“We were really worried we got ushered away, then there were a lot of officers that stormed in.”
An 18-year-old man has been arrested nearby on suspicion of murder.
A second man, also believed to be aged 18, has been arrested on suspicion of affray.
Chief Superintendent Sara Leach, who is in charge of policing in north west London, said: “My thoughts are with the loved ones of the young man who has been killed in this incident.
“I would like to offer my thanks to the members of the public who came to his aid. They showed considerable courage.
“Two people have been arrested and an investigation is already under way. We will do all we can to identify and bring to justice those responsible.
“The public can expect to see a heightened police presence in the area through the rest of this evening and in the days to come.”
The shopping centre was open at the time of the incident and it is likely that there were a number of witnesses.
Anyone with information should call 101, providing the reference CAD6136/04MAY.
Information can also be provided to Crimestoppers, anonymously, by calling 0800 555 111.