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.
Buying A Home? Wicklow Remains The Most Expensive County Outside Dublin
A house in the Garden County will set you back and average of €455,831.
Wicklow Ready To Build Sites Available for €40,000
A new council initiative has five sites up for grabs. They're connected to water, wastewater and have road frontage.
Wicklow Wexford TD Invokes The Spirit Of Rebellion In Dressing Down The Government
Wicklow–Wexford TD condemns Government over fuel prices amid protest anger
Wicklow's Simon Harris Calls For Unity As Fuel Relief Package Kicks In Amid Global Price Shock
Amid national anger and widespread protests, Wicklow's Simon Harris says the Government is determined to shield households and businesses from the worst of global price spikes and crippling costs
Memoir Launched in Support of Wicklow County Cancer Groups
Family, friends, local representatives and community supporters gathered in Rathnew for the launch of 'The Odyssey of a Wicklow Native' a memoir written by David Harrington.
8:00pm - 10:00pm
Love Songs on the Coast
Light rain
High: 14°C | Low: 8°C
Light rain
High: 13°C | Low: 8°C
Light rain
High: 14°C | Low: 7°C
Light rain
High: 15°C | Low: 7°C
Light rain shower
High: 14°C | Low: 7°C