The stabbing occurred at round 3.15pm on October 17 on the ninth flooring of the Arndale Centre automotive park in Manchester metropolis centre.
The boy was taken to hospital with accidents believed to be per a stab wound.
His situation is just not believed to be life-threatening or life-changing.
Detective Inspector Sam Jones, of GMP’s Metropolis of Manchester District CID, stated: “This incident will understandably trigger concern, however fortunately the accidents suffered by the sufferer usually are not life-threatening.
“Detectives on the scene are working extraordinarily arduous to course of the scene with Crime Scene Investigators.
“The automotive park is predicted to be closed for a number of hours, so we ask to your understanding and persistence while we collect proof to convey these offenders to justice.
“That is believed to be an remoted incident with no threat to the broader public.
“Larger Manchester Police are dedicated to diligently investigating all knife crime and bringing offenders to justice, and we’re asking for anybody with details about this incident to return ahead to help with our enquiries.”
A scene stays in place, and the general public is being urged to keep away from the realm.
Enquiries are ongoing.
Anybody with data is requested to contact police on 101 quoting log 2050 of 17/10/2026, or through the LiveChat perform at gmp.police.uk.
Alternatively, data may be shared anonymously by contacting Crimestoppers on 0800 555 111.
Police have reassured the general public that there isn’t a wider risk and consider the stabbing was an remoted incident.