Revenue detector dog blue helped officers find MDMA worth €60,000 in Dublin Airport this week.
The 1kg find was made in the transport hub on Monday, November 25.
It was made as part of routine operations after a 28-year-old man from Northern Ireland was stopped and searched after coming off a flight from Amsterdam.
The man has since appeared in court charged in connection with the find.
A Revenue spokeswoman said: "On Monday (25/11/2019), as a result of a routine operation, Revenue officers in Dublin Airport seized 1kg of MDMA with an estimated street value of €60,000.
"The illegal drugs were found with the assistance of detector dog Blue when Revenue officers stopped and searched the luggage of a 28 year old man from Northern Ireland who had disembarked a flight from Amsterdam.
"The man was arrested by Gardai and detained at Ballymun Garda station.
"Yesterday (26/11/2019), the man appeared at the Criminal Courts of Justice on charges of importation of a controlled substance. He was remanded in custody to Cloverhill Prison and will appear again at Cloverhill District Court on 3 December 2019.
"These routine operations are part of Revenue's ongoing work targeting smuggling and shadow economy activity. If businesses, or members of the public have any information about smuggling, they can contact Revenue in confidence on Confidential Phone Number 1800 295 295."
