Two men have been arrested as part of a major police crackdown on money laundering and insurance fraud.
The pair, aged 27 and 62, were detained in Ballymena, Co Antrim, and Newtownards, Co Down.
They were questioned by detectives from the Police Service of Northern Ireland's organised crime branch.
The 27-year-old is currently in custody helping police with their inquiries but the 62-year-old has been released on police bail pending further inquiries.
It brings to 25 the number of suspects who have been arrested and questioned since May as part of an investigation which is expected to continue for some time.
"Today's arrests are linked to the money laundering side of the investigation," said a PSNI spokesman.