Drugs worth in excess of €80,000 and €13,000 in cash were seized as part of a planned Garda operation in Limerick city on Saturday night.
Twelve locations across the city, including derelict houses and wastelands, were searched as part of Operation Thor, which targeted organised crime in the city.
Cannabis, cocaine, benzodiazepine and a number of shotgun cartridges were seized by Gardaí during the raids.
The Limerick Divisional Drugs Squad, Detective and Crime Units, Divisional Traffic Corps, Regional Support Unit and other local units were involved in the operation.
No arrests have been made at this time and investigations are still ongoing.