Carmarthenshire Roads Policing Unit is investigating a serious two vehicle RTC that occurred on the B4302 Llandeilo to Talley road at around 9am on Sunday May 27.
The vehicles were a black Suzuki Grand Vitara and a blue Nissan Juke.
The elderly male driver of the Suzuki Grand Vitara sustained serious injuries, and was conveyed by air ambulance to the Heath hospital in Cardiff where he remains in a serious condition.
The road was closed, but re-opened by approx 1.25pm.
Police are appealing for witnesses to the collision, or anyone who witnessed either of the vehicles travelling along the B4302 to contact them as soon as possible by calling 101.
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