GREATER Manchester Police are searching for a group of four people with Irish accents after a man suffered a fractured skull in a "brutal" assault.
The incident occurred shortly after 4am on November 5 in Manchester city centre.
GMP officers were called to Stevenson Square outside Hula Bar to reports of a serious assault.
The friends of the 30-year-old victim were involved in a verbal altercation with the offender and his group of friends before the victim was kicked in the face in an unprovoked attack.
The victim then fell to the floor and suffered a fractured skull.
Police have said they believe the attacker, as well as the people he was with, had an Irish accent.
Scroll down to see more images of the people Greater Manchester Police want to speak to...
Officers have now released CCTV images of two men and two women they would like to speak to in connection with the assault.
Sergeant Kal Bhatti, from GMP’s city centre team, said: “This was a brutal attack which the victim is still recovering from.
“This happened when lots of people would have been in the area after spending the night in the city’s bars and clubs.
"Anyone who witnessed anything is urged to contact us immediately.
“If you recognise the people pictured or think you might have seen them at some point that night then please also get in touch.
“I would also urge those pictured to contact police and help us with our investigation.”