The incident occurred in Terminus Road around 11.54pm on Friday 24 November.
The victim was taken to hospital with a serious head injury, where he remains at this time.
The suspect, described as a man about 6’ tall and wearing dark clothing, made off from the scene in the direction of Albert Road.
Anyone who saw what happened, or captured any relevant mobile, CCTV or dash cam footage, is asked to report it online or call 101, quoting reference 47230231568.
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