It was announced on Friday, September 25, that Llanelli had gone into local lockdown alongside Swansea and Cardiff.
It's the first time a town has been subject to a local lockdown in Wales rather than a whole county borough.
Unlike the two big-city council areas which will be under tighter restrictions from 6pm on Sunday, residents living in Llanelli will go into lockdown on Saturday, September 26.
In Carmarthenshire, action is being taken on a more localised basis because, according to the Welsh Government, more than eight out of 10 cases are focused on the town of Llanelli.
It will mean people who live locally will have to follow stricter measures, but what places are actually included in the lockdown?
Llanelli lockdown area:
Only those living in Llanelli will be under lockdown, and not the whole of Carmarthenshire.
The ward areas subject to the new restrictions can be found below:
The Welsh Government said a postcode checker would be available on its website together with full details about the restrictions soon.
Llanelli lockdown start time and restrictions
Measures for Llanelli come in on Saturday, September 26 at 6pm.
The new rules for Llanelli, Cardiff and Swansea can be found below: