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.
Knockananna's Sarah Murray Takes First Dates Ireland By Storm
Wicklow woman Sarah wows the crowd as she prepares for her appearance on First Dates Ireland
Wicklow Councillors Back Move To Increase Housing By Up To 5,500 Units In Revised Plan Upgrade
Housing Growth Targets for Wicklow have been radically increased following a council vote of members this week
TV's Brendan Courtney Helps Launch Wicklow Town Memory Café For People With Dementia
A new initiative aims to provide vital emotional support for people with dementia and their carers
Calls For Support For Wicklow Bus Operators Amid Fuel Costs Rise
Fionntán Ó Súilleabháin says there is an 'unfair imbalance threatening the viability of regional services, school transport routes, and essential commuter connections.'
Bonjour Wicklow! French Travel Show Highlights Garden County as a 'Beautiful Escape'
Up to two million tourists could tune into French TV to see Wicklow on a popular travel show.
8:00pm - 10:00pm
Love Songs on the Coast
Sunny intervals
High: 12°C | Low: 4°C
Sunny intervals
High: 13°C | Low: 4°C
Heavy rain shower
High: 14°C | Low: 1°C
Heavy rain shower
High: 12°C | Low: 1°C
Heavy rain shower
High: 13°C | Low: 1°C