A 20-year-old man has died after being apprehended by a police officer in an east London shop.
The Met Police said the man was followed on foot after officers tried to stop a car in Kingsland Road, Hackney, at 01:45 BST on Saturday.
He was “taken ill” after “trying to swallow an object” and was pronounced dead in hospital a short time later, the force said.
The Independent Police Complaints Commission (IPCC) has been informed.
Footage apparently showing the incident has been shared on social media, along with the hashtag #JusticeForRash.
The film, recorded by a security camera, shows a young man entering a shop pursued by a uniformed police officer.
In the footage, there is a struggle on the floor, and the man appears to put his hand to his mouth.
Another man in plain clothes is seen helping the officer.
The man they are trying to arrest is seen handcuffed with his hands behind his back.
Scotland Yard said the officer “intervened and sought to prevent the man from harming himself”.
A force medic provided first aid at the scene before London Ambulance Service paramedics arrived.
The man, who has not been named, was taken to an east London hospital and pronounced dead at 02:55.
Police said next of kin had been informed and a post-mortem examination and formal identification would be “arranged in due course”.
“The Directorate of Professional Standards and the Independent Police Complaints Commission have been informed and have declared the incident independent,” a force spokesman added.
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