Officers said that a 22-year-old man was attacked and suffered a fractured cheek bone as he walked along Val Plaisant, near Checkers Xpress, at 2.30 am on Sunday.
Police are appealing for witnesses to come forward so that they can try to piece together what happened. The attacker was with a group of seven men, but it is not known if any of the other men were involved.
The culprit is described as being aged 16 or 17 years old, 5 ft 10 in, of normal build and clean shaven with short fair hair. He was wearing a blue or brown top, blue jeans and white trainers.
