The arrest came as part of an ongoing investigation by gardaí from Carrickmacross
A 53-year-old man is due before a special sitting of the Special Criminal Court this evening in connection with dissident republican activity.
The man was arrested on Wednesday.
The arrest came as part of an on going investigation by gardaí from Carrickmacross, Co Monaghan, who are being assisted by gardaí from the Special Detective Unit, Harcourt Square.
The man will appear at the Criminal Courts of Justice where he will be formally charged.