A man was left in need of hospital treatment with a serious head injury following an attack outside a busy Glasgow train station.
An altercation is alleged to have taken place between the 20-year-old victim and another man on Gordon Street in the city centre moments before he was struck from behind at around 9:45pm on Saturday, March 26.
The pair were said to be walking near to Glasgow Central Station prior to the incident which was probed by police at the time.
Officers have since released images from a nearby security camera which appears to show a man they want to trace in connection with the attack.
The victim was taken to Glasgow Royal Infirmary but was later released.
The man in the image is described as is described as a white male, aged between 18 and 30 years old and of medium build.
He was said to be wearing a white T-shirt with black trousers and black trainers at the time of the incident.
Police Scotland said he “may have information that can assist with the investigation”.
A statement added: “Detectives are asking the man in the image, or anyone who recognises him or who has information regarding this incident, to contact officers through 101 quoting reference number 4032 of March 26.
“Alternatively, Crimestoppers can be contacted on 0800 555 111, where anonymity can be maintained.”