Two people have been arrested after drugs worth an estimated €534,000 were seized at Rosslare Europort.
Revenue seized 2.7kg of heroin, 1.1kg of ecstasy, almost 1kg of cannabis resin and 0.2kg of LSD tablets yesterday.
The drugs were concealed in the fuel tank of a UK-registered vehicle that had disembarked a ferry from Cherbourg.
A 40-year-old Scottish national and a 34-year-old Irish national were arrested and are being questioned at Wexford Garda Station.
Revenue's Canine Team member, Ralph, was involved in the operation.