Revenue officers seized €40,000 worth of herbal cannabis at Shannon Airport on Wednesday.
The drugs were discovered in a parcel that came from Italy and were destined for an address in Limerick City.
The 2kg of herbal cannabis was found by Revenue officers during routine operations.
Investigations are ongoing.
Revenue asked businesses or members of the public who have any information about smuggling to contact it in confidence on their confidential phone number, 1800 295295.