A 56-kilo haul of cannabis has been found hidden in the fuel tank of a van searched after coming off a ferry from France.
A 29-year-old Romanian man was arrested after the seizure was made in the Rosslare terminal. He was being questioned in Wexford.
The drugs are estimated to be worth about 337,500 euro.
The Revenue's Customs Service said officers made the seizure as a result of routine profiling.