Officers want to speak to the man in connection with the incident, which involved an altercation between a group of men, between McDonalds and the Cenotaph, Harrogate.
One man sustained serious injuries to his leg for which he was treated at Harrogate Hospital before being discharged.
Police are requesting the public’s assistance to help identify the man pictured on CCTV as he may have important information that could assist the investigation.
Anyone who recognises the man in the CCTV image or who has any information, including those who provided initial first aid to the victim, is asked to contact police.
Anyone with information that could assist the investigation should contact North Yorkshire Police on 101, select option 2, and ask for Xavi Lopez. You can also email firstname.lastname@example.org
If you wish to remain anonymous, you can pass information to Crimestoppers on 0800 555 111.
Please quote the North Yorkshire Police reference number 12170227730.