One person arrested in Cavan yesterday as part of an investigation into dissident republican activity has been released from custody.
A Garda Spokesperson says they were released without charge and a file will be prepared for the Director of Public Prosecutions.
They were one of three people arrested in Cavan yesterday morning as part of an operation involving the Special Detective Unit, the Ballistics and Forensics Section and local Gardaí.
Two others remain in custody for questioning.