A thirteenth teenager has been arrested on suspicion of murder after a 16-year-old was stabbed in Trafford.
Kennie Carter died in hospital on Saturday, January 22, after suffering a fatal wound to the chest in Stretford.
Greater Manchester Police says that yesterday (February 16) a 13th boy was arrested on suspicion of murder in connection with the case.
The teenager, a 17-year-old from Hulme, was questioned by detectives and has since been released on bail.
Nine teenagers aged between 13 and 17 have already been arrested on suspicion of murder and remain on bail with conditions, having been interviewed by investigators from GMP's major incident team.
Three other teenage boys who were arrested have since been eliminated from the enquiry, the force says.
A spokesperson for GMP said: "Kennie's family are being kept updated on the investigation through specialist officers who continue to support them.
"So far, investigators from our major incident team have spoken to over 50 people, collated in excess of 100 hours of CCTV and executed over a dozen warrants.
"We're still particularly keen to hear from anyone who may have been driving through Moss Road, Thirlmere Road, and Victoria Road between 6pm and 7pm that night and urge them to check their dash-cam."
Any footage or images from the night should be submitted to GMP's online portal here.
Alternatively, anyone with information about the stabbing - no matter how insignificant it may seem - can be passed on by calling 0161 856 9908, quoting incident 2529 of January 22, 2022.
Details can be passed anonymously to the independent charity Crimestoppers on 0800 555 111.
Knife amnesty bins can be found at police stations across Greater Manchester.