A student was robbed in Strathmore Avenue on December 8.
Someone shouted “Where are you going” at the victim, 23, and as he turned round he was punched in the head, causing him to fall to the floor. He was then punched repeatedly.
The robbers took a phone, cash and speakers and fled the scene to Essex Close.
The three offenderse are described as being between 17 and 22 years old.
Det Con Cathie Layton said: “This happened early in the evening and a lot of shouting may have been overheard by passers-by. I am interested in locating anyone who saw three men matching the descriptions
given in the area that night as they could have vital information that may help us identify those responsible.”
Anyone with information can contact Det Con Layton on 01582 394442, or Bedfordshire Police on 101, or text information to 07786 200011.