A man in his 30s has been arrested by police investigating a stabbing in Enfield on Tuesday, the Metropolitan Police said.
Scotland Yard said the victim was reported to have been walking with a companion when he was attacked in Fairfield Road. He was found shortly after by police nearby.
The attack happened just days after four apparently random knife attacks in the area.
Police said “at this stage the incident has not yet been formally linked” but warned the public to be vigilant.
Detective Superintendent Luke Marks, of the North Area Command Unit, said: “I am aware that events from the weekend have caused a huge amount of worry and concern among the community, and that this incident will cause further alarm.”
The suspect in the latest stabbing was described as a tall, skinny black man, wearing a hoodie.
The suspect in the random stabbings is described as a black man, approximately 6ft 3ins tall, of skinny build and wearing dark clothing.
A security guard told the Press Association he saw officers running to arrest the man, who “just stopped”.
“There were more than 15 police,” he said.
“They were searching him, pulling things out of his pockets, putting things in the (evidence bag). I didn’t see a knife inside there.”
He said the man was a “skinny black geezer”, adding: “He wasn’t talking.”