Gardaí seized €34,000 worth of cocaine and a sum of cash during a search in Galway county on Friday.
Yesterday, Gardaí from the Galway Divisional Drug Unit searched a home in Oughterard.
Cocaine believed to be worth €34,000 and €2,150 in cash was seized following the search.
A man in his 20s was arrested at the scene and he was detained by Gardaí under Section 4 of the Criminal Justice Act 1984.
He has since been released without charge. A file will now be prepared for the Director of Public Prosecutions.
Gardaí have said that investigations into this case are ongoing.