The Met Police will step up patrols in Walthamstow following a series of stabbings.
Officers were called shortly after 6.01pm on Wednesday evening to reports that a man, aged in his thirties, was stabbed on Brandon Road. The victim remains in a life-threatening condition.
Two other men — both aged 18 — were also found with stab injuries and were later arrested on suspicion of attempted murder. Their injuries were deemed non-life threatening.
Wednesday’s incident comes after four people were stabbed in the borough on February 13.
Three of the victims were found inside The Duke Pub in Wood Street while a fourth was found close by in Shernhall Street with a stab wound to his neck.
A man was later arrested on suspicion of attempted murder.
Chief superintendent Simon Crick, responsible for local policing in north-east London, said: “I recognise the significant concern this incident has caused, particularly following a number of similar incidents over recent days, and we are taking significant steps to increase our local policing presence in the area.
“We are working with partners and our community to do all we can to prevent further violence.
“Local officers, who know the community, will be on patrol in the area. These are your officers, please speak to them about any concerns you have.
“Our detectives are also supporting the family of the man who remains seriously ill in hospital.
“Our relentless efforts to tackle serious violence has led to an almost a 20 per cent reduction in knife crime offences in Waltham Forest over the past 12 months, however these recent incidents are a stark reminder that we can’t be complacent and I assure you that we will continue to take action to remove dangerous criminals from the streets.”