Police are appealing for witnesses after a teenage boy was robbed of his phone by a man who pulled a knife on him in Winton, Eccles.
At around 6pm on Tuesday 12 May, the 17-year-old victim was walking through wasteland near to the canal bank to the rear of Verdun Road on the Winton estate when he was approached from behind.
Without warning an offender grabbed the victim and slammed him to the floor, pulling a knife out of his pocket and demanding that he hand over his mobile phone.
The terrified victim handed over his phone and pin number and the offender ran off along the canal path towards Parrin Lane Bridge.
The offender is described as white, around 17-18 years old, slim build and around 5ft 9in tall.
He was wearing a light grey hooded tracksuit top with the hood up and matching light grey tracksuit bottoms.
He spoke with a local accent.
Detective Constable Derek Nellany said: “This aggressive assault and theft has understandably left the victim shaken and upset.
“The offender has put him through a traumatic experience and there is a strong chance that this man will put others through the same ordeal unless we can catch him.
“If you believe you witnessed the attack, or saw anyone matching this description in the area at the time please contact us on the numbers provided.”
Anyone with information is asked to call police on 0161 856 5097 or the independent charity Crimestoppers, anonymously, on 0800 555 111.