Scotland Yard confirmed that the police were called at 10.59 (GMT).
Still no details on the status of the victim have been revealed.
A man was arrested on the ground following GBH's suspicion.
A crime scene remains in place in North London at the time of writing.
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A spokesman for the metropolitan police said: "A man was arrested on the ground following a suspicion by the GBH. A crime scene is in place.
Careful assassination is the fourth reported stabbed in London on Wednesday, November 7th.
Other male victims were stabbed in Shepherds Bush, Hackney and another in Leytonstone.
Enfield has seen a wave of violent crimes in the last year.
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At the end of last month, a man believed to be 30 years old was found with multiple wounds stabbed to the foot.
The victim was urgent in the hospital where they were treated for life-threatening injuries.
In March, 23-year-old Russell Jones died after suffering injuries from injuries and a wound shot in Enfield, northern London.
20-year-old Ishak Tacine from Enfield has been stabbed repeatedly in Edmonton after telling of an altercation between men armed with baseball bats.
Tuesday, Nov. 7, a 98-year-old victim suffered a head injury and more bruises in the assault and robbery "brutally and without sense," police said.
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The officers were summoned to his home in Evesham Road, Enfield, immediately after 10 o'clock Tuesday.
He was taken to the hospital, where he remained in critical condition.
Monday, Mayor of London, Sadiq Khan, warned that it could take a generation to turn the wave of violent crimes into the capital.
He said, "Making significant progress can take up to 10 years."
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Low police levels in the beating were partly detrimental to the scourge of violence.
According to City Hall data, London police are at the lowest level in the last 20 years, with 3.3 policemen for every thousand Londoners – the lowest rate in 1998 and 19 percent below 2010.
Local leaders must be more successful in the government lobby for extra cash for the police, Khan said.