A teenager was taken to hospital with serious injuries after being attacked in the Granite City.
The 19-year-old male victim sustained injuries to his face and was treated at Aberdeen Royal Infirmary.
The incident occurred at around 2am on Saturday in the Bedford Avenue area of the city.
Police said inquiries are ongoing to trace three people who could assist them. The first man is in his late 20s, around 6ft and medium build with short dark brown hair. He was wearing a ‘Harrington’-style jacket with a red T-shirt underneath and dark trousers. The second is around 6ft 1, medium build and wearing jeans.
Officers are also keen to speak to a woman who is in her early 20s, around 5ft 5ins, of a slim build with blonde highlighted hair. She was wearing distinctive black and white pyjama bottoms and a fleece-style top.
Constable Alan Gordon, of the Divisional Alcohol Violence Reduction Unit (DAVRU) – which is leading the investigation – said: “It would appear that this assault was unprovoked, which is completely unacceptable. The man involved has sustained a serious injury to his face however I don’t think I need to stress that the outcome could have been much worse – even just one punch can have fatal consequences.
“We suspect these individuals may be local to the area and I am appealing to local residents to help us solve this crime. I would ask anyone who lives in the area, or may have been there on the night in question and saw anyone matching the descriptions provided, to please get in touch by calling Police on 101 or Crimestoppers on 0800 555111 to remain anonymous.”