Five arrests have been made after €289,000 worth of cannabis was found in Connacht.
Searches were carried out in Roscommon, Sligo and Mayo.
Four locations in all were searched yesterday - with five men now in Garda custody.
Two separate premises in Ballaghderreen in County Roscommon were searched with €161,000 worth of cannabis plants and herb found - three men aged 33, 46 and 41 were arrested.
While, in Charlestown in county Mayo, 80 cannabis plants with a value of €64,000 were discovered - a 26-year-old was taken into custody by Gardaí.
The fourth seizure was made in Clogherevagh in county Sligo - where another 80 plants were found with a 49 year old man arrested at the scene.
All five arrested are being detained at Garda stations in Connacht.