Gardaí and Revenue have seized more than 900,000 cigarettes with an estimated retail value of over €850,000.
Searches of two properties were carried out in Edenderry and Rhode in Co Offaly today.
Gardaí say they recovered 906,000 cigarettes with an estimated retail value of €858,500 during the searches.
Revenue customs officers have seized the cigarettes which have been taken for further examination.
Investigations are ongoing.