Thames Valley Police is appealing for witnesses after a robbery, which occurred in Milton Keynes.
At approximately 7.20pm on Friday 19 November, the victim, a man aged in his twenties, was in the Walkhampton playground in Bradwell Common, when he was approached by two other men who made demands for his property.
The victim refused to hand over his property and fought back. One of the offenders stabbed him in the abdomen and buttock, before taking his mobile phone and keys.
The victim was taken to hospital for treatment, where he had surgery for his injuries and remains at this time.
The offenders are both described as male, both wearing dark winter clothing with hoods up and masks.
One of the offenders was a white man, and the other one had a darker complexion.
Investigating officer Detective Constable James Schöpp, based at Milton Keynes police station, said: “The victim in this case refused to hand over property and was subsequently injured by a sharp object, which has required surgery.
“I am appealing to anybody who believes that they witnessed this incident to please get in touch with Thames Valley Police either online or by calling 101, quoting reference number 43210524430.
“Alternatively, if you wish to remain anonymous, you can contact the independent charity Crimestoppers on 0800 555 111 or via their website.”