One man has been arrested after trouble flared during the opening of a new clothes shop at the Junction One retail outlet in Antrim.
Bargain hunters queued throughout Saturday outside the new store
About 2,000 people arrived for the first opening of a Clockwork Orange store, and tempers frayed as people tried to jump the queue.
The shop opened at 0500 BST on Saturday for a "beat the clock" sale.
A spokeswoman said queueing began earlier than expected and managers called the police as a precaution.
Bargain hunters were lining up for the promotion, where the cost of an item is based on the time of purchase.