Dyfed-Powys Police is investigating the theft of both the front and rear number plates from a black Honda Civic.
The offence occurred sometime between 5pm on January 31 and 11am on February 1 from the unattended car. At the time the vehicle was in a private car park adjacent to the Creamery in Four Crosses.
If you have information or saw any suspicious activity please contact Dyfed-Powys Police on 101, or call the independent Charity Crimestoppers, anonymously, on 0800 555 111.