Detectives investigating the murder of Joao Ricardo Gomes in Enfield have made a further arrest.
A 15-year-old boy [G] was arrested on the morning of Friday, 8 September on suspicion of murder and causing grievous bodily harm.
He was subsequently bailed until a date in early October.
This is the seventh arrest made as part of this investigation:
A 14-year-old boy [A] was arrested on suspicion of murder on Tuesday, 23 May.
A 14-year-old [B], a 15-year-old [C] and a 16-year-old [D], all male, were arrested on Thursday, 29 June on suspicion of murder and grievous bodily harm. [C] was also arrested on suspicion of theft.
A 14-year-old boy [E] was arrested on Wednesday, 19 July, at an address in Enfield on suspicion of murder and grievous bodily harm.
A 17-year-old boy [F] was arrested on Thursday, 17 August on suspicion of murder.
Suspects [A to E] are due to return from bail in late September. [F] is due to return from bail in mid-September.
Detectives from the Homicide and Major Crime Command continue to investigate and appeal for information about the murder.
On Saturday, 13 May, police were called shortly after 22:30hrs to a fight involving a number of people on Hertford Road, Enfield.
Officers attended and found an 18-year-old man - later identified as Joao Ricardo Gomes - suffering from stab injuries. He was pronounced dead at the scene.
A post-mortem examination held on Tuesday, 16 May gave cause of death as a stab wound to the chest.
A 19-year-old man [Victim 2] and a 17-year-old male youth [Victim 3] were found nearby on Palmers Lane, also suffering from stab injuries. They were taken to hospitals by London Ambulance Service and have since been discharged.
Anyone who witnessed the assault or has any information that could assist police with their investigation should contact the incident room on 020 8217 6582, or report via twitter @MetCC.
To give information anonymously call Crimestoppers on 0800 555 111 or visit crimestoppers-uk.org