Police have seized counterfeit goods worth £100,000 at the Oul Lammas Fair in Ballycastle.
A selection of the counterfeit goods seized at the fair
The illegal goods seized during the two-day operation included clothing, sunglasses and football wristbands.
Police said a number of people would be reported to the Public Prosecution Service.
The operation was led by the PSNI's Intellectual Property Crime Unit which is attached to the Organised Crime Branch.
Officers from the Ballycastle area were also involved, along with industry representatives who helped to identify items believed to be counterfeit.
The police said they seized counterfeit goods worth almost £10m in Northern Ireland last year.
Local PSNI commander Paul Baslie said counterfeiting "deprived legitimate traders of profits, and could lose workers their jobs".
He added that it could pose serious risks to the public in products such as cigarettes, washing powder and perfume.