A CRASH on the A4232 has closed one lane and is causing traffic delays.

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UPDATE 9.30AM: Traffic Wales said the incident has been cleared. All lanes are now open and congestion is easing.

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The busy dual carriageway connects Cardiff with the motorway.

The incident happened on the northbound carriageway near M4 Junction 33.

South Wales Argus: Picture: Traffic WalesPicture: Traffic Wales

Police and the fire brigade are at the scene.

Traffic Wales has warned drivers to expect delays.

South Wales Argus: Traffic map showing congestion (red line) on the A4232 around the site of the crash. Picture: The AATraffic map showing congestion (red line) on the A4232 around the site of the crash. Picture: The AA

More to follow.