A 44-year-old man suffered facial injuries after being attacked outside at Dundee bar.
Police Scotland are appealing for witnesses following the assault at B 4 OUT in St Andrews Lane between 2.20 and 2.40am on Thursday, May 21.
A Police Scotland spokeswoman said: “A man in his late 20s wearing an orange top is being sought in connection with the assault and was seen leaving the area in a black London-style taxi cab.”
Officers investigating the incident believe the taxi driver may have information that could assist with the inquiry and are aware that there were a lot of people in the street at the time.
Police would like to speak to anyone who may have witnessed the incident, or who knows the person responsible for the assault.
Anyone with information is asked to contact Police Scotland on 101 or Crimestoppers anonymously on 0800 555 111.