80 people have been arrested in Dublin in the last 48 hours by gardaí investigating drug dealing.
The 72 men and eight women had previously been charged with offences relating to the supply of serious controlled drugs.
100 homes across Dublin have been searched as part of Operation Feeder, which was set up to tackle drug dealing at street level.
Gardaí said they have broken up the supply network of two criminal gangs.
The operation was led by the Garda National Drugs Unit and included units in Store Street, Pearse Street, Kilmainham and district drug units throughout the city.
Garda Commissioner Fachtna Murphy said the force is committed to 'tackling drug supply at all levels'.
The operation has been ongoing for the past five months.