Four people are being questioned at garda stations in Leitrim after reports of threats to kill a local businessman.
The four, all understood to be from Northern Ireland, were arrested yesterday afternoon in the Killeshandra area of Co Cavan.
Two are being questioned in Carrick-on-Shannon garda station and the other two are being held at Manorhamilton.
All four are detained under Section 4 of the Criminal Justice Act.
It is understood the threats to kill the Co Leitrim businessman were made yesterday.