Officers stopped a Polish registered truck which came on a ferry from France and found the cigarettes within its load.
They have a retail value of €2.4 million, which is a potential loss to the exchequer of over 1.8 million.
A man in his 40s is being questioned as part of the investigation.
Snow May Fall On Wicklow Mountains Tonight
Three separate yellow warnings have been issued for rain, wind and snow across 18 counties in the southeast.
Tánaiste Announces near €19 million Investment in Wicklow Roads
The town centres of Arklow, Baltinglass, Enniskerry, Bray and Greystones are each allocated €20,000 to improve main streets.
Arklow Crowned Ireland’s Top Town for Work-Life Balance
Arklow is Ireland’s number one best town for work-life balance in the new 2026 Switcher.ie study
Estate of Play: Wicklow Defies Apartment Boom
House completions are still surging in Wicklow unlike many other counties where apartments seem de rigeur according to all the facts released from the office of The Central Statistics Office
Wicklow Quarry Search For Missing Women Resumes Tuesday Morning
Josephine "Jo Jo" Dullard went missing in 1995, three years before the disappearance of Deirdre Jacob in 1998
Sunny intervals
High: 6°C | Low: 4°C
Sunny intervals
High: 6°C | Low: 4°C
Sunny intervals
High: 6°C | Low: 4°C
Medium-level cloud
High: 6°C | Low: 3°C
Medium-level cloud
High: 6°C | Low: 4°C
