No arrests have but been made and detectives are finishing up plenty of strains of inquiry, added police.
A cordon is in place masking a big part of Walker Avenue in Nice Lever, with a forensic tent within the entrance backyard of 1 tackle.
The sufferer was a pupil at Harper Inexperienced Faculty in Farnworth.
In a message to oldsters on its web site, the varsity stated: “The college neighborhood is shocked and saddened by this horrible information and our ideas are with the coed’s household and associates at this tough time.
“For a life to be ended at such a younger age is a complete tragedy.
“We’ll guarantee any college students who want it obtain assist and recommendation by our pastoral system.
“Harper Inexperienced is a close-knit neighborhood, we’ll work collectively over the approaching days and weeks in supporting all these affected.”
Interesting for data, Detective Superintendent Chris Bridge stated: “This incident will understandably be an enormous shock to the neighborhood and our ideas are with the boy’s household at this terrible time.
“These are very early phases of our investigation however we want to reassure the general public that we’re doing all we are able to to piece collectively what occurred and discover these accountable.
“There can be an elevated police presence within the space while we supply out plenty of strains of inquiry and anybody involved within the native neighbourhood can converse to our officers.
“I’d urge anybody who might have data or witnessed something within the space to return ahead.
“Even the smallest data could also be essential to our investigation.”
Anybody with data can name police on 101 quoting incident 359 of 04/05/2021 or report on-line at gmp.police.uk; or to stay nameless contact Crimestoppers on 0800 555 111.