DYFED-Powys Police is appealing for witnesses following a fatal road traffic collision that occurred at approximately 4.30pm on Monday (Jan 7) on the westbound carriageway of the M4 approximately 200-300 yards from Pont Abraham roundabout.
Four vehicles were involved in the collision and several people were taken to hospital.
Sadly, a male passenger, travelling in a white Peugeot Partner van, later died in hospital.
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The road was closed and reopened fully at 6.40pm.
Anyone who witnessed the collision or has dashcam footage is asked to contact the Serious Collision Investigation Unit on 101.
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