A Cannabis grow house with plants worth approximately €528,000 was discovered in Co Roscommon.
Gardaí arrested two people in the process of the bust, which took place at approximately 1 p.m. on Monday.
A woman, aged in her 50s, and a man in his 60s were arrested at the scene.
As part of Operation Tara in Ballaghaderreen, garda from the Roscommon Divisional Drugs Unit assisted by garda from Castlerea searched a property under a warrant.
During the course of this search, a suspected cannabis grow house was discovered by gardaí.
Along with suspected cannabis plants worth an estimated €288,000 and about €240,000 in processed cannabis, both were seized.
The estimated value of all the drugs seized is €528,000, subject to Forensic Science Ireland’s analysis.
The man and woman are both being held in custody at the Castlerea Garda Station in accordance with Section 2 of the Criminal Justice (Drug Trafficking) Act 1996.
A garda spokesperson said: “Investigations are ongoing.”