Four men have been arrested after 1.5 million euro was laundered through fake bank accounts.
The money is the proceeds of various cyber scams.
A number of searches were carried out in Dublin this morning and gardai identified a number of bogus companies established by a crimal organisation.
Gardaí carried out 8 searches in North and West Dublin this morning.
A number of bogus companies established by a criminal organisation and a large number of bank accounts set up in both false names and money mules were identified.
Gardaí have established that about €1.5 million was laundered through and the money is the proceeds of various cyber scam - including one where fraudsters send text messages to random phones.
Documentation along with identifications, cash and phones were seized and are being examined.
Four male Romanian nationals aged in their late 20s and early 30s have been arrested for criminal activity, money laundering and obstruction.
Investigations are ongoing.