A man was left requiring hospital treatment following an attack at a taxi rank in Airdrie.
The 41-year-old sustained a serious facial injury during the incident in the early hours of the morning on Saturday, May 21.
He was taken for treatment at a local medical facility while an initial investigation got underway.
Police Scotland has now released CCTV images obtained from a nearby security camera of a man they wish to trace in connection with their probe.
He is described as being around 5ft 10in in height with a medium build and is thought to be between 20 and 30 years of age.
The victim was later discharged from hospital by officers remain keen to talk to the man to establish the circumstances surrounding the assault.
Detective Constable Katy Goldie of CID said: “I would urge anyone with information relating to the man in the CCTV image to contact police as soon as possible.”
Members of the public can contact Police Scotland via 101, quoting reference number 0294 of Saturday, May 21 or if they wish to remain anonymous, they can call the independent charity Crimestoppers on 0800 555 111.