A 25 year old man is due in court this morning in connection with suspected Islamic terrorist activity.
It was part of an intelligence led operation in Waterford city yesterday morning.
A man and a woman in their 20s were arrested on suspicion of having committed offences under the Terrorist Offences Act and taken to Waterford garda station for questioning.
They were suspected of facilitating the transfer of money to support Islamic terrorists abroad.
The woman has since been released without charge with a file being prepared for the DPP.