Gardai seized €1million in cash in an early-morning bust on Friday.
Officers from the Garda National Drugs and Organised Crime Bureau (GNDOCB) stopped a van on the M7 in Kildare at around 6.30am.
The vehicle was intercepted and more than €1,000,000 in cash was found.
One man, aged 45, was arrested on suspicion of participating in the activities of a criminal organisation, to facilitate money laundering, relating to the suspected proceeds of drug trafficking and is being held at Portlaoise Garda Station.
After a number of follow-up searches, a further €10,000 in cash was seized in the midlands.
Assistant Commissioner John O’Driscoll, who heads Organised and Serious Crime in An Garda Síochána, said: "An Garda Síochána continues to pursue organised crime groups who are believed to involved in supplying illicit drugs within our communities, the motivation for which is financial gain.
"We again today have made a significant advance in our attempt to dismantle organised crime groups, by locating and seizing the suspected proceeds of their criminal activity.
"Despite our significant commitment to tackling issues associated with the COVID-19 pandemic, at this time, An Garda Síochána remains focused on protecting communities from serious and organised crime, including cyber enabled crime, drug trafficking and associated money laundering.”
