A Romanian man in his 20s is due in court this morning in connection with a 1.5 million euro money laundering investigation.
It follows eight searches in Dublin north and west last week.
Gardaí identified a number of bogus companies set up by a criminal gang and bank accounts opened in false names and by money mules.
The proceeds of various cyber frauds like "smishing" and "vishing", organised prostitution and thefts were laundered through the accounts.
Documents, IDs, cash and phones were seized.
Three other men arrested have been released without charge, with files being prepared for the DPP.
A fifth man arrested during the operation is currently charged and before the courts.
