Herbal cannabis with an estimated street value of one million euro has been seized by customs officers.
The 91kgs of drugs were concealed in a consignment of chocolates and sweets that had arrived in Dublin Port from the Netherlands.
An Irish man in his late 20s has been arrested and is being held at Ballymun Garda Station.
The seizure is a result of a joint operation between Revenue and the Garda National Drugs Unit as a result of profiling by officers at Dublin Port.
The man is being questioned at Ballymun Garda Station under Section 2 of the Criminal Justice Drug Trafficking Act 1996, under which he can be detained for up to seven days.
© Press Association