Gardaí have seized half a million euro worth of heroin and cocaine, following the search of a house in Clondalkin yesterday.

The specialist Garda Drugs Unit from Ronanstown seized three kilos of heroin and one kilo of cocaine.

They also found material they believe was being used as a mixing agent.

A 24-year-old male was arrested at the scene and is currently being detained at Ronanstown Garda Station.

The seizure was made during a planned operation targeting the drug trafficking activities of west Dublin criminal gangs.