A man was knocked unconscious and needed an operation after an attack in York city centre.
It happened at 12.15am on Sunday 16 November at the St Saviourgate taxi rank.
Police are now trying to trace the person in this image, along with witnesses.
St Saviourgate, York

The victim was knocked unconscious and had his nose broken in several places. He may require surgery when his wounds have healed.
A North Yorkshire Police spokesperson said: “We’re appealing for information to help trace the man on the CCTV image in connection with the incident.
“Also, any further witnesses including the taxi driver that was parked at the taxi rank when the incident has happened. They or other passing motorists may have relevant dashcam footage.”

How to help the police
- Call North Yorkshire Police on 101, select option 2 and ask for Nick Harrison
- Email Nick Harrison
- Contact Crimestoppers anonymously on 0800 555 111 or via the website
- Quote reference number 12250216566












