A 15-year-old boy was threatened with a knife and robbed of his phone by men on a mini moto and scooter.
It happened at midnight on Wednesday while the victim was walking to Wolverton near Moorfoot via Fullers Slade.
The men then rode their bikes onto the pavement and stopped in front of the victim, asking him for the time.
When he replied he didn’t know, they repeated the question then one offender threatened him with a knife.
The victim then showed the offender his iPhone 4S, which he grabbed. He then rode off on his bike down the Redway.
The first offender is black in his late teens, around 5ft 11ins tall of a medium build. He was wearing a white hoody, with a black sleeveless jacket on top andwhite tracksuit bottoms. He spoke with a local accent.
The second offender is white, of a similar age to the first offender but slightly taller and of medium build. He was wearing black clothing and a black baseball cap.
Anyone with information please contact Det Con Samantha Reynolds from Milton Keynes police station through the 24 hour non emergency 101 enquiry centre.
If you don’t want to speak directly to the police, you can contact Crimestoppers anonymously on 0800 555 111.
No personal details are taken, information is not traced or recorded and you will not go to court.