Seven men and a woman have been arrested following the seizure of 660,000 euro worth of cannabis.
Gardai stopped two cars in Celbridge and discovered 30 kilos of cannabis herb, expected to have a street value of approximately 360,000 euro.
Four men were arrested at the scene.
Two, aged 49 and 45 years, were taken to Lucan for questioning and two, aged 43 and 22 years, were detained in Leixlip.
A Garda spokesman said during a follow-up search of an apartment in Adamstown a further 25 kilos of cannabis herb, expected to be worth 300,000 euro, was found.
Another three men, aged 40, 41 and 32 years, and a 38-year-old woman were arrested and taken to Clondalkin and Ballyfermot garda stations.
All four are detained under the provisions of section 2 of the Criminal Justice (Drug Trafficking) Act 1996.
The intelligence-led operation included members from the Organised Crime Unit assisted by the Garda National Drugs Unit.