One man is being questioned following the discovery of a major diesel laundering operation in Carrickmacross in Co Monaghan.Revenue Officers backed up by Gardaí raided a premises just outside  the town and discovered the facility in a premises.

It is understood it had the capabilities to  launder around three million litres of diesel per year with a potential annual loss to the Exchequer of approximately €1.8 million.Approximately 12,000 litres of laundered fuel and a truck was seized. Ancillary equipment found on the premises was also dismantled and seized.No arrests were made but one man in his 40s is being questioned.Operations in the area are continuing.