A SECTION of the A483 is closed following a three car collision.

The incident happened on junction 5 on the northbound carriageway, just before 6pm and is currently causing congestion back to junction 4.

The police said in a statement that there is some debris in the carriageway as well as damage to the crash barrier. Road police are also conducting a rolling roadblock from junction 4.

Traffic Wales say the incident is expected to last until at least 7.50pm. Police are currently arranging recovery but road users are advised to find an alternative route.