A man has been left with serious head injuries after being jumped near Central Station in Glasgow.
Police are appealing for witnesses following the incident at around 6.40pm on Wednesday, October 9, under the railway bridge on Argyle Street.
A 31-year-old man was rushed to Glasgow Royal Infirmary by the Scottish Ambulance Service and released following treatment.
The suspect is described as a white man, around 6ft tall, with brown hair that was shaved at the side.
He was wearing a dark coloured parka-style jacket, blue jeans and dark shoes.
The suspect was with a female, who is believed to be aged in her twenties, with blond hair, and who was wearing a short black jacket.
The suspect and female left the scene on foot in the direction of Hope Street.
Detective Constable Chris Smith, of Glasgow CID , said: "We know that the area would have been busy at the time of the incident with people making their way to and from Glasgow Central Station .
"We are appealing to anyone who witnessed the assault, or the suspect and his female companion immediately prior to or after the incident, and report this to officers.
"There are a number of CCTV cameras covering the area which officers are currently reviewing and would ask anyone who can help with our ongoing inquiries to come forward as soon as possible."
