Customs officers have discovered a diesel laundering operation in Dublin.

The operation was found in an industrial estate in Blanchardstown.

As a result of intelligence, customs officers raided the premises on the Orion Business Park.

They found a diesel laundering operation capable of washing around 2.5m litres of agricultural diesel a year.

That would then be sold on as road fuel, with the loss of around €1.75m to the Exchequer.

Revenue said the plant used the unsophisticated method of filtering the fuel through cat litter.

One vehicle and laundering equipment was seized in the raid.

No arrests have been made and the investigation is ongoing.