A man has been seriously injured in an attack in Glasgow that police are treating as an attempted murder.
Police were called at at 7.15pm on Sunday to the incident in Bridge Street, near the Sou’wester Tavern.
A 46-year-old was taken to the Queen Elizabeth University Hospital in the city, where his condition is described as critical.
Police believe a second man may have also been injured in the disturbance, although his injuries are believed to have been minor.
CCTV footage showed the second man entering bars and clubs after the incident.
Police are looking for four suspects, two men and two women, all believed to be 20 to 30-years-old.
The first suspect is a white male with short dark hair.
He was wearing a long-sleeved green jumper, black jogging trousers that had red and white stripes down the side, and red and white trainers.
The second suspect is an Asian male who was wearing a black jacket and black hooded top underneath.
He was wearing black shorts on top of black leggings, black trainers and a black baseball cap.
The third suspect is a white female with long dark hair.
She was wearing a grey coat, a light-coloured top, blue jeans and grey trainers.
The fourth suspect is a white female with long dark hair.
She was wearing a white hooded top with a red love heart design, blue jeans and white trainers.
Detective Sergeant Steven Slater said: “At this stage, we do not know what has provoked this attack.
“We are carrying out inquiries to locate the second man, who may have suffered minor injuries, as we are sure he has information which will be integral to our investigation.
“I would also like to appeal to members of the public who were in the area last night, particularly any motorists or taxi drivers with dash cams, to contact us.
“Potentially, your camera could have captured images with could assist with our inquiries.”