The collision, between a black Jaguar and a black Ford Fiesta on the busy road happened around 4pm on Thursday (13 June).
The driver and passenger of one of the vehicles sadly died as a result of their injuries.
A spokesperson for Dyfed Powys Police said: “Officers are appealing for witnesses following a fatal collision on the A477 between Llanddowror and Red Roses, which occurred at around 4pm on Thursday, 13 June.
“Two cars were involved – a black Jaguar and a black Ford Fiesta.
“The Jaguar was travelling westbound towards Pembrokeshire and the Fiesta was travelling in the opposite direction at the time of the collision.
“Sadly, a man (27) and a woman (25), both travelling in the same car, died as a result of their injuries. Their next of kin have been informed and are being supported by specialist officers.
“Two other adults, aged 27 and 33, were taken to hospital with injuries not believed to be life threatening.
“The road was closed for collision investigation and has since reopened.
“Anyone who was travelling along this road at the relevant time and has dash camera footage is urged to contact us.”
(Lead image: Google Maps)
