Revenue officers have seized 27,000 unstamped cigarettes in North County Dublin.
The seizure was made during a search of an apartment in Swords.
The contraband cigarettes are branded 'Marlboro Gold' and 'L&M", and have a retail value of more than €14,175.
This represents a potential loss to the Exchequer of around €11,300.
A Slovakian woman in her 30s was questioned and investigations are ongoing.