A man in his 50s was treated in hospital after being injured in an assault in the Donegall Road area of south Belfast in the early hours of Monday.
The man sustained injuries to his head and face, and his ribs were broken during the reported incident.
A 39-year-old man was arrested in the Donegall Road area on suspicion of causing grievous bodily harm. He’s since been released on bail pending further enquiries.
Police investigating the incident are appealing for witnesses and information.
Detective Constable Gardiner said he wanted to make a number of appeals.
“Were you in the Donegall Road area between 1am and 2:10am on Monday? Did you witness the assault? Did you see three men acting suspiciously in the area?
“If you have information you believe may assist our investigation, or can help us identify the suspects, please call detectives at Musgrave on the non-emergency number 101, quoting reference 74 of 05/11/18,” he said.
Alternatively, if you would prefer to provide information without giving your details, you can contact the independent charity Crimestoppers and speak to them anonymously on 0800 555 111.