A supermarket assistant was punched in the face several times during a robbery on Thursday night.
Two robbers entered the Budgens shop in Grange Farm at 9.30pm on November 6.
While one man kept guard, the other approached a member of staff and hit them while demanding money. The victim told him where the money was and the man stole a quantity of cash. Both men then ran away.
The victim sustained bruising to his forehead during the incident.
The first offender was black, 5ft 10ins, of muscular build. He was wearing a light grey hooded top with the hood up, light grey jogging trousers and possibly Nike Air Max trainers.
The second offender was black, about 6ft, and of heavy build. He was wearing a blue tracksuit with an emblem on the left side and trousers with a white stripe down the leg and arm and white trainers.
Det Sgt Jason Simpson, from Milton Keynes Force CID, said: “I am appealing for witnesses to the incident. Please call officers if you saw anyone acting suspiciously in the area at around the time of the incident or anyone who matched the descriptions of the offenders.”
Anyone with information is asked to call the 24-hour Thames Valley Police enquiry centre on 101.
Alternatively call Crimestoppers, anonymously, on 0800 555 111. No personal details are taken, information is not traced or recorded and you will not go to court.