Police have seized eight cannabis plants from a property at Maengwynne, Furnace.
The plants, along with lighting and growing equipment, were discovered during a search warrant by Carmarthenshire drugs team and Llanelli Neighbourhood Policing Team at the house.
A 35-year-old man has been interviewed and reported for summons.
This is the second positive warrant for the team in two days, following the seizure of 450 tablets in Llanelli yesterday (August 22).
A woman has been interviewed in relation to the tablets and released pending further investigation.
Anyone with information about drugs use is asked to report it to Llanelli Police Station, or by calling 101. Alternatively, phone Crimestoppers on 0800 555111. If you are Deaf, hard of hearing or speech impaired, text the non-emergency number on 07811 311908.
