Three men have been arrested in Co Armagh by detectives investigating alleged dissident republican activity.
The suspects; aged 47, 42 and 41, were detained in Lurgan.
As part of the operation Police Service of Northern Ireland officers searched three houses and seized a number of items for forensic examination.
Three men and a woman were detained in Co Antrim, and Co Tyrone over the weekend by police investigating alleged dissident activity. The three men are aged 33, 44, and 46, while the woman is 37. They are being questioned at Antrim police station.
Another man, aged 45, was arrested in in the Cookstown area on Saturday. He has since been released without charge.