Gardaí in Dublin have seized 4kg of cocaine, worth an estimated €300,000.
A quantity of crack cocaine was also seized.
The seizure was made by the local and national drug units during a search of a house in Finglas this afternoon.
The house was being kept under surveillance as part of an ongoing investigation into the activities of a Finglas based drugs gang.
A 20-year-old has been arrested and he is being questioned at Finglas Garda Station under Section 2 of the Drug Trafficking Act.