Police investigating serious terrorist crime are today questioning six people arrested in republican areas of Belfast.
Most of the five men and one woman were detained in west Belfast - the remainder in the north of the city.
It is understood they are being questioned about the activities of dissident republicans.
A PSNI spokesman said the arrests had been made under the Terrorism Act.
The arrests were made during a series of raids earlier in the day and a number of items seized during searches in the greater Belfast area were being tested by forensic experts.