It happened in Llwynhendy yesterday lunchtime.
A motorcyclist is in hospital with serious injuries after a crash in Llanelli.
It happened yesterday at around 1.20pm on Penllwynrhodyn Road in Llwynhendy.
The bike - a White Aprilia 125 - was the only vehicle involved.
Dyfed-Powys Police is appealing for any witnesses to the collision or any dash cam evidence of the motorcycle travelling down the B4297 Llwynhendy Road near to the Joiners Arms or Glynderwen Road prior to the collision.
If you have any information, please contact the Serious Collision Investigation Unit via telephone number 10 quoting reference DP-20200516-160.