Plenty of people and vehicles had been intercepted in Ashbourne, Meath for a stop-and-search at roughly 4pm.
Income, the Medicine & Organised Crime Bureau and the Particular Crime Job Drive had been all concerned within the haul.
Gardaí additionally searched a neighborhood enterprise premises throughout the operation.
Officers found roughly 160 kilos of hashish herb throughout the raids, with a road worth of just about €three.2m.
4 Irish males, aged between 25 and 61, had been arrested on the scene for drug trafficking offences.
Investigations are ongoing.