Four people arrested over dissident republican activity in the North

Police have arrested four people over alleged dissident republican activity.
The three men and a woman were detained in Toome, County Antrim and Pomeroy, Carrickmore and Omagh in County Tyrone.
Houses in all four places are being searched. The three men are aged 33, 44, and 46, while the woman is 37.
They are currently being at Antrim PSNI station.