A 14-year-old boy, one of the five injured people in a sword-wielding attack, has died of his wounds, according to the Irish Independent.
The attacker was detained following an attack on members of the public and two police officers at a Tube station, according to the Metropolitan Police.
Police are not searching for any other suspects in connection with the incident, and do not believe that it is terror-related, Scotland Yard added.
According to a statement by the Metropolitan Police, "Police and other emergency services are in Hainault, east London, at a serious incident in which a man with a sword has been arrested."
"We were called shortly before 7am to reports of a vehicle being driven into a house in the Thurlow Gardens area. There were reports people have been stabbed.
"At this time we understand the suspect went on to attack other members of the public and two police officers. We are awaiting an update on the condition of those injured. A 36-year-old man was arrested at the scene and he is in custody."
In a post on X, the police urged the public to "follow the instructions of police officers on the ground."
MP Wes Streeting wrote, "A critical incident has been declared in Hainault. There are station and road closures in place. The Police, Ambulance Service and Fire Brigade are responding."
"One male detained.
"I would urge people not to speculate until details are confirmed or post footage on social media."