Four men have been arrested in Belfast as part of an operation into the criminal activities of the Irish National Liberation Army (INLA), the PSNI said.
The men were taken into custody after officers from the Paramilitary Crime Task Force (PCTF) carried out searches at six properties in north and west Belfast on Sunday.
A firearm and suspected Class A Drugs were seized at the scene. A forensic examination of the items is expected to take place.
The men were detained under the Terrorism Act.
The PCTF was set up to tackle crime linked to paramilitary activity.