POLICE received a report of a collision between a car and a tractor with a trailer at just past 12am today (Friday, June 21).
The road was closed in both directions from St Clears to Carmarthen while emergency services dealt with the incident.
Two men – the driver and passenger of the car – have been taken to hospital. One is in a critical but stable condition.
Anyone who witnessed the collision, who hasn’t already spoken to police, is asked to contact the serious collision investigation unit at Dyfed-Powys Police on 101.