The men aged 31, 24 and 25 were arrested as part of an ongoing investigation into a Romanian organised crime group.
The search was conducted by members of Garda National Economic Crime Bureau, National Bureau of Criminal Investigations and assisted by local Gardaí from Letterkenny and Milford.
A large amount of fraud paraphernalia including suspected cloned credit cards, credit cards issued in false names, bank account details, false Romanian identity documents, credit card machines, till rolls and a number of suspected stolen Irish and UK passports and driving licences along with 2 cars bought on finance obtained on bank accounts opened in false names were discovered at the location and seized. Much of the documentation seized relates to suspected frauds in Northern Ireland.
Investigation which includes enquires with Europol and the PSNI are ongoing.
The three arrested men are currently detained under Section 50, Criminal Justice Act, 2007 as amended and are detained at Letterkenny and Milford Garda Stations.