A man was subjected to a “random” assault by two men as he made his way home in the city centre.
The 21-year-old had just passed Jeremiah’s Taproom on Elm Row at around 12.30am on Friday when he was confronted by the men.
They struck him in the face before making off down Montgomery Street.
The victim suffered a cut lip during the attack and went home before calling police.
Detective Constable Iain Wallace said: “This appears to be a random assault, which resulted in the victim, who did not know his attackers, sustaining a painful injury to his mouth.
“We are keen to hear from anyone who remembers seeing any suspicious activity on Elm Row during the time of this incident and would ask those with information to contact police immediately.
“In particular, we are eager to hear from a group of people who entered the street from a nearby common stair while the assault was taking place.
“These individuals may have seen something that can help our investigation and I would ask them to get in touch with us.”