Gardaí seized heroin with an estimated street value of up to €100,000 after searches in Dublin on Friday.
Gardaí from the Dublin Metropolitan Region North Central Divisional Drug Unit carried out a planned search at a house in Dublin 1.
Heroin with an estimated street value of €30,000, pending analysis, was seized and a male in his 40s arrested.
In a follow-up search at a flat in the Dublin 1 area, heroin with an estimated street value of up to €70,000 was seized and a female in her 30s arrested.
A number of mobile phones, cash and drug paraphernalia were also seized.
The man and woman are detained under the provisions of Section 2 of the Criminal Justice (Drug Trafficking) Act 1996 at Store Street Garda station.