A man has died following an assault in the Fossgate area of York on Tuesday evening (19 April).
The 46-year-old had been receiving treatment in hospital following the incident which happened outside The Terrace Sports Bar at around 10.15pm.
It is thought there were two altercations on the evening involving three people who were asked to leave the bar at 8.30pm.
The death of the 46-year-old is being treating as homicide by North Yorkshire Police and officers are supporting his family, who were with him when he passed away.
The force is now appealing for any witnesses to help with their investigation.
A 38-year-old man was arrested at the scene and since been released on police bail.
CCTV footage shows several people on the street at the time the assault took place.
Senior Investigating Officer DI Steve Menzies of the Major Investigation Team said: "We are naturally treating this as a homicide investigation and our thoughts are with the victim’s family at this difficult time.
"We know that there were two incidents involving the same people at the Terrace Bar. It is believed that three men were asked to leave the bar at around 8:30pm with an altercation taking place outside, and then a further incident occurring just after 10pm, again outside the bar.
"We have recovered CCTV footage that shows a number of people have witnessed different parts of these incidents and I appeal to anyone who witnessed the incident or was in the area at the time to come forward if you haven’t spoken to us yet.
"Your evidence, no matter how insignificant you feel it may be, could be vital to the police investigation”.
Anyone with information is being asked to contact North Yorkshire Police on 101.