An Irish man has been questioned as part of an investigation into a major Covid-19 fraud operation.
An inquiry was launched after a fake order was placed for millions of masks destined for Germany.
Officials there contracted a German company to buy millions of the personal protective equipment to help in the fight against the virus.
The firm was put in contact with a Dutch company through an Irish intermediary to place an order for 11 million masks, worth up to €7.7 million euro.
However this order was made through a fraudulent entity, which had cloned the website and email address of the legitimate Dutch company.
A €1.5 million down payment was made for the delivery of the first million masks to an Irish bank account based in Roscommon.
In late March, reps from the German and Irish companies met in Amsterdam to inspect and oversee the handover of the shipment. However it never materialised.
An investigation was launched and €1.5 million has since been frozen in an Irish Bank Account.
An Irish citizen was interviewed last Friday in Roscommon in connection with suspected money laundering.