Gardai in north Dublin have seized 3.5kg of heroin and a small quantity of cocaine after a search of house in the area this evening.
The seizure, in the Greenwood Estate, Coolock, has a potential street value of €750,000.
A 22-year-old man was also arrested and is being held under section 2 of the Drug Trafficking Act at Coolock Garda Station.
The search was undertaken as part of an "ongoing operation, targeting the sale and supply of drugs in the North Dublin Area".