Three men have been arrested and cannabis with an estimated street value of €720,000 has been seized during garda operations in Meath, Dublin and Louth.
Gardaí from the National Drugs and Organised Crime Bureau stopped four vehicles in Ashbourne and west Dublin.
Gardaí were assisted by Revenue in the searches.
Four addresses in Dublin, Meath, and Louth were also searched.
Three men, two aged in their 30s and one aged in his 40s, were arrested and detained under section 2 of the Criminal Justice (Drug Trafficking) Act 1996.
They are being detained at Ashbourne and Ronanstown Garda Stations.
Assistant Commissioner John O'Driscoll said the seizure and arrests demonstrate "the value of ongoing positive working relationships forged by An Garda Síochána with partner agencies".
"We will continue to work with our law enforcement partners to tackle organised crime that impacts negatively on communities," he said.
