A serious collision on the M4 is causing rush hour chaos with reports of up to 10 miles of traffic.
The eastbound carriageway is currently closed at J23A to J23 Rogiet, towards the Severn Bridge. Delays are expected to last until 18.30.
The collision, involving two vehicles, happened at around 2.09pm this afternoon.
Gwent Police, Wales Air Ambulance and South Wales Fire and Rescue have attended the scene.
Motorists are advised to plan an alternative route where possible.
Newport Bus is reporting delays through the city centre due to the heavy traffic.
Newport County has also announced that tonights game will be pushed back from 7.30pm to 8pm because of the delays.