A 17-year-old male has been arrested on suspicion of indecent exposure in Llanelli.
He has been released under investigation pending further police enquiries.
Dyfed-Powys Police is appealing for information about an allegation of indecent exposure outside The York Palace pub, Stepney Street, Llanelli.
A man reportedly exposed himself and made sexual comments to a woman at around 1.15pm on Friday, May 4.
Anyone with information is urged to contact PC 21 Heather at Llanelli Police Station by calling 101.