A Trimsaran man has been arrested on suspicion of terrorism offences after chemicals were found at a property in the area.
Officers from the Wales Extremism and Counter Terrorism Unit (WECTU) supported by Dyfed Powys Police found chemicals at the address in the Trimsaran area on Tuesday 11 June.
The 57-year-old was arrested and remains in custody on suspicion of being concerned in the commission, preparation or instigation of acts of terrorism.
A specialist search continues at the property and a cordon remains in place. Police say there is no risk to neighbouring properties.