The A40 in Pembrokeshire has been closed in both directions with queueing traffic due to a crash between the A478 (Penblewin Roundabout) to Bethel Lane.
Drivers are being urged to avoid the area and traffic monitoring systems have reported severe delays.
A spokesman for Dyfed-Powys Police said: "A40 Whitland -Penblewin in both directions.
"The road is currently closed due to a collision
"Please avoid the area and find alternative routes for your journey. Thank you."
14:43 Lucy John
Traffic update
The Google traffic map below shows the stretch most affected by slow traffic.
14:37 Holly Morgan
Queueing traffic
Traffic monitoring system Inrix reports queueing traffic due to an accident from A478 (Penblewin Roundabout) to Bethel Lane.
14:29 Holly Morgan
Police ask drivers t

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