Gardaí have seized almost €3 million worth of cannabis herb following a search of several vehicles.
The seizure took place just after 3pm on Tuesday in the Ashbourne area.
It was part of a planned operation conducted by the Drugs Organised Crime Bureau and the Special Crime Task Force.
It is understood the drugs could have a street value of about €2.7 million once confirmed.
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Three men, aged 58, 41 and 35 are now in custody in Ashbourne and Finglas garda stations. They have been held under Section 2 of the Criminal Justice Drug Trafficking Act.