A haul of drugs were found in two different residential properties in Llanelli after officers searched the premesis.
Teams from Dyfed-Powys Police, including armed officers and a dog unit, found cannabis and nine bags containing white powder after forcing entry into a flat in Station Road, Llanelli.
Officers entered the property just after midnight on Wednesday, June 3 and found the stash of drugs that had an estimated value of £600.
A 19-year-old man was arrested on suspicion of possession with intent to supply and taken to police custody but was released under investigation pending further enquiries.
A second warrant was carried out on Sunday, June 7 after Dyfed-Powys Police were alerted to reports of alleged drug activities from neighbours.
A search was carried out in Pottery Street, near Llanelli town centre, where 12 grams of cannabis, 39 unknown tablets and a small bag of unknown substances were found.
Two men will be voluntary interviewed on suspicion of possessing illegal substances.
To report anything suspicious or concerns about the selling and taking of drugs in their community, call 101, or report online.
To report information anonymously, call the independent charity Crimestoppers on 0800 555 111.
