An ongoing probe into international terrorist financing by the Special Detective Unit and other garda units led a series of six searches in Dublin this morning.
Documents, electronic equipment and €4,500 cash was seized.
Financing
Four people were arrested for suspected terrorist financing contrary to Section 13 of the Criminal Justice (Terrorist Offences) Act, 2005 and are currently detained under Section 4 of the Criminal Justice Act, 1984.
Those arrested are a man in his 40s and three women in their 30s, 40s and 60s respectively.
The investigation is ongoing.