A 20-year-old man was left with serious injuries after he was repeatedly punched on the dancefloor on a student night out.
The victim was attacked in the early hours of September 18 in Leeds University Union at the University of Leeds.
West Yorkshire Police say he was left with a fractured cheekbone and eye socket following the unprovoked attack.
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The suspect was described as a black male, aged about 20, about 5ft 9ins tall, with short black dreadlocks with the tips dyed orange.
A spokesperson for the force said the night was open to other students and the public so the suspect may not necessarily be a student.
Anyone who recognises him from the images or who has any information that could assist the investigation is asked to contact PC 1126 Carroll at Leeds District CID via 101 quoting crime reference 13210476595 or online.
Information can be given anonymously to the independent charity Crimestoppers on 0800 555 111.
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