A crash has forced the closure of part of the M4.
There are reports of 'severe' disruption on the eastbound side at junction 24.
Two cars were involved - nobody sustained any life-threatening injures.
Traffic can also be seen queueing through the Brynglas tunnels.
Diversions are in place with vehicles being taken off at junction 24, directed around the Coldra and back on to the other side of the M4.
A four-vehicle crash has shut part of the A470, causing long tailbacks.
Traffic is at a standstill southbound after a crash between the Abercynon roundabout and the Bridge Street interchange.
The accident has been cleared and traffic is easing on the M4 Eastbound at J45 A4067 / B4603 (Ynysforgan)
There are reports of long delays on the M4 coming into Wales.
The Highways Agency is reporting that traffic between junctions 22 and 26 of the westbound M4 could face severe disruption.
Still long delays on the #M4 westbound from Swindon all the way into South Wales due to the rugby tonight in Cardiff (17:44)
It says it's not expecting normal traffic conditions until 8pm.
There are delays to trains between Newport and Cardiff Central after a vehicle struck a bridge, causing congestion.
National Rail says there are delays of up to 20 minutes, with disruption expected to continue until around 5pm.
There is major disruption on a main train route between London Paddington and Swansea after a person was hit by a train.
All transport routes in and out of Cardiff are expected to be busier than usual with the Wales V Fiji match being held at the Millennium Stadium.
The incident happened between Swindon and Bristol Parkway but is likely to disrupt trains travelling to Swansea.
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