Two young men were stabbed less than a mile apart in Highbury on Friday night.
Police were called to reports of a fight at the junction of Ambler Road and Quill Street just after 7.30pm and found a 15-year-old boy had been stabbed.
He was taken to hospital with injuries not said to be life-threatening.
One witness said dozens of police were at the scene. Three boys, two aged 15 and one 14, were arrested on two counts of suspicion of possessing a prohibited weapon and possession of an offensive weapon. They have been bailed until next month.
Hours later, at 3am on Saturday morning, a man in his 20s was stabbed in a car park off Petherton Road, Highbury.
He was also taken to hospital with injuries not said to be life-threatening.
Forensics officers could be seen combing the scene for evidence on Saturday morning, but no arrests have been made.
Anyone with information can call police on 101 quoting reference 995/12MAY or Tweet @MetCC. Alternatively, call Crimestoppers anonymously on 0800 555 111.
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