Gardaí seized herbal cannabis with a street value of €350,000 after searches in Mulhuddart, Co Dublin last night.
A Garda spokesman said the discovery was made after a house and a vehicle were searched at 8pm as part of an ongoing operation by the Blanchardstown Drugs Unit.
A 34-year-old man was arrested and is being held for questioning at Blanchardstown Garda station under Section 2 of Drug Trafficking Act.