Revenue officers seized have 25,000 cigarettes following a search at premises in Co. Cavan.
The unstamped cigarettes, branded 'Minsk' had been smuggled into the State from Russia.
On Wednesday, as a result of an intelligence-led operation - and with the assistance of detector dog Bill - 25,000 cigarettes were discovered in Shercock, Co. Cavan.
A Hungarian man in his twenties was questioned in relation to the incident.
Separately, in Dundalk, Co. Louth, Revenue officers seized over 6,000 cigarettes, with a Latvian man in his thirties questioned.
The cigarettes seized from both of these operations have a combined estimated retail value of more than €22,000, posing a potential loss to the Exchequer of over €17,400.
Elsewhere yesterday, as a result of routine profiling, Revenue officers seized 11,000 cigarettes at Dublin Airport, following a search of the checked baggage of a man that had disembarked a flight from Poland.
The smuggled cigarettes of various brands have an estimated retail value of €7,700, representing a potential loss to the Exchequer of €6,000.
The seizures are part of Revenue's ongoing operations targeting the supply of illegal tobacco products and the importation of illegal drugs.]