A CAR has rolled over on the eastbound carriageway of the M4 near Newport.

The incident happened just before Junction 29 (A48M), and was causing long tailbacks for traffic travelling eastwards towards Newport.

UPDATE 7.40PM: Traffic has returned to normal.

South Wales Argus: AA Traffic map showing no congestion on the M4 west of Newport.AA Traffic map showing no congestion on the M4 west of Newport.

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UPDATE 6.25PM: Traffic Wales has tweeted to say all lanes are now re-open. However, severe congestion remains in the area.

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UPDATE 6.15PM: Here is the full statement from Gwent Police:

"At approximately 4.11pm this afternoon, officers were called to a reported three-vehicle road traffic collision on the M4 Eastbound, just prior to the A48(M) intersection.

"Officers and emergency services are currently on the scene.

"At present, there are no serious injuries reported, however, two drivers have been conveyed to the Royal Gwent Hospital as a precautionary measure.

"The road is closed and diversions are in place which may cause congestion.

"We will update you as soon as the road is re-open.

"Anyone who witnessed the collision, or may have dash-cam footage, or anyone who has any further information should call 101 quoting log number: 343 20/09/19 or you can Direct Message (DM) us on our Facebook and Twitter social media pages."

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UPDATE 5.50PM: No serious injuries have been reported, Gwent Police said in a statement.

However, two drivers have been conveyed to the Royal Gwent Hospital as a precautionary measure.

Full statement to follow.

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UPDATE 5.25PM: According to Traffic Wales, lane two has re-opened. Lane one remains closed while the emergency services await vehicle recovery. Severe delays remain in the area.

South Wales Argus: Police and fire crews attend the rolled-over car on the M4 near Newport. Picture: Traffic WalesPolice and fire crews attend the rolled-over car on the M4 near Newport. Picture: Traffic Wales

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Emergency services are at the scene, the police added.

This photograph, shared by Traffic Wales, shows a white car upside-down in the left-hand lane of the carriageway.

Gwent Police tweeted to say the road was closed and diversions were in place, which may cause delays.

Traffic cameras are showing long tailbacks on the eastern carriageway, stretching to Junction 30 (Cardiff Gate).

South Wales Argus: A gridlocked eastern carriageway on the M4 approaching Newport. Picture: Traffic WalesA gridlocked eastern carriageway on the M4 approaching Newport. Picture: Traffic Wales

We will be updating this story as more information becomes available.