A man in his 30s has been arrested following a controlled delivery of the drugs
Gardaí have seized cannabis with an estimated street value of €600,000 in County Meath.
The drugs - 30kg of herbal cannabis - had earlier arrived at Dublin Port from Spain concealed in large cylindrical air filters.
Gardaí yesterday carried out a controlled delivery of the drugs in collaboration with the Revenue Customs Service.
A man in his 30s was arrested and is being detained at Finglas Garda Station.
He is being held under Section 2 of the Criminal Justice (Drugs Trafficking ) Act 1996.
Gardaí are continuing their investigations in the area.