Two men have been arrested by the UK's National Crime Agency in a fraud investigation linked to the sale of NAMA's property portfolio in Northern Ireland.
They were arrested earlier during searches in Co Down.
Detectives are investigating the controversial £1.2 billion sale of assets and property owned by NAMA.
The portfolio was sold off to the US investment firm Cerberus, in the north's biggest ever property deal.
An NCA spokesman said: "Officers from the National Crime Agency have today carried out two arrests and related searches in the Co Down area in connection with a fraud investigation. The operation is being assisted by the PSNI. As the investigation is continuing we are unable to comment further.''
