Two men and one woman have been arrested in connection with the operation
Cannabis worth an estimated €2.8 million has been seized in Co Cavan.
The Garda National Drugs and Organised Crime Bureau and Revenue’s Customs Service were involved in today's operation.
Around 143kg of herbal cannabis was seized by officers.
A 36-year-old man and a 50-year-old woman were arrested. They are being held at Ballyconnell Garda Station.
A second man - aged 46 - was arrested in a follow-up operation, and is being held at Cavan Garda Station.