Gardaí and Interpol are carrying out a joint investigation into the sending of fraudulent emails and money laundering.
Operation SKEIN has seen 264 arrests made in relation to fraudulent crimes committed in Ireland for a West African crime gang.
Gardaí say approximately 40 million euro has been laundered in Ireland since the start of Operation SKEIN.
Originally set up to assist another EU Member State with an investigation into fraudulent crimes, it's now developed into a joint operation with Interpol.
It's feared upwards of 64 million euro has been laundered in this country by aides to the West African Crime Gang known as 'Black Axe'.
Gardaí say there could be more than 4,000 money mules operating for the gang from Irish addresses.
They've carried out 264 arrests to date, leading to 135 charges and court appearances to follow.
Nine premises were searched in Clare and Dublin leading to 62 charges of money laundering alone.
Arrests have been made in the likes of Dublin, Meath, Kerry, Limerick, Cork and Waterford to date.
Gardaí are continuing their efforts to clamp down on the activity of the Black Axe Gang and will await orders for those who've been charged from the DPP.
