Police investigating suspected extreme right wingers acting suspiciously in a forest in Co Antrim have arrested four men.
Men aged 29, 30, 36 and 46, were detained at houses in Ballymena and Coleraine earlier on Wednesday.
Police Service of Northern Ireland (PSNI) detective inspector Andy Workman said: "Police are investigating the activities of a number of individuals who appear to have extreme right wing views about tensions in north eastern Europe and have been involved in suspicious activity in a forest in Co Antrim."
He said these enquiries are not part of the investigation into munitions finds at Carnfunnock and Capanagh earlier this year.
A number of searches were conducted and several items removed for further examination.
The suspects have been taken to a police station in Belfast for questioning.