A 27-year-old man to appear before a special court sitting in Tyrone this morning to face charges relating to terrorist activities.
The man was the fifth person to be arrested following a series of raids carried out in Strabane on Wednesday.
Bomb material and six incendiary devices were found in the raids.
Three others who had been arrested following the searches have been released while a 37-year-old man also held in the operation was charged at a court sitting in Omagh yesterday.