WATCH: Police taser and detain sword-wielding man in Hainault following attack

The is the moment captured on a doorbell camera of police officers tasering and detaining a sword-wielding man in Hainault, north east London, after a 14-year-old boy died after being stabbed following an attack on members of the public and two police officers.

Police confirmed that four others were injured in the attack, including two Metropolitan Police officers.

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