A man has been arrested after heroin and cocaine, with an estimated street value of €1.3m, were seized at Rosslare Europort.
Revenue officers stopped and searched an unaccompanied trailer this morning after it arrived on a ferry from Dunkirk in France.
The search was carried out as a result of routine profiling, and using Revenue's mobile x-ray scanner.
The officers found over 5kg of heroin and 8kg of cocaine, which were concealed in a hidden compartment of the trailer.
A man in his 30s was arrested and is being held at Wexford Garda Station.
Investigations are continuing.
In a statement, Revenue said the operation was part of its ongoing work targeting drug smuggling.
It said: "If businesses, or members of the public have any information, they can contact Revenue in confidence on Confidential Phone Number 1800 295 295."