A gang who robbed three children turned on themselves, with one of the offenders being stabbed.
The trio were in Copster Hill Park near Hollins Road, Oldham at 9.45pm on Saturday 6th April when they were approached by three men.
One of them grabbed a 12-year-old boy and demanded he handed over his mobile phone, holding a knife to him.
The man then threatened his friends, throwing a girl to the floor and holding the other victim against a fence, and told them to hand their phones to him.
A second man who was part of the gang told his friend to calm down. The offender turned on his friend and was stabbed in the shoulder before all three ran off with the phones.
They are described as being white, in their late teens or early 20s, of skinny build, wore dark clothing and balaclavas or scarves.
Anyone with information should phone police on 0161 856 8952 or the independent charity Crimestoppers, anonymously, on 0800 555 111.