A 30-year-old man suffered injuries after being kicked in the head by a group of men at the Balmoral Show.
He was set upon alongside another man - aged 20 - by a group of men at one of the event's car parks outside Lisburn at around 9pm on Friday, May 17.
The 30-year-old sustained injuries and was taken to hospital for treatment.
He has since been released.
It's understood a number of drivers in the area at the time saw the attack.
Police are appealing for those who witnessed the incident to contact them.