This was the traffic jam that hundreds of people found themselves stuck in while travelling along the M4 on Saturday. Drivers and passengers found themselves waiting for so long, one passenger heading in the other direction reported they saw people get out of their cars.
Sharing photos of the congestion, Traffic Wales South issued an alert on social media and said: "Police incident on the M4 J23A Magor Westbound All traffic currently held at this time."
An update a short time later said: "Traffic has now been released. Congestion in the area due to the previously held block." Further updates read: "Prince of Wales bridge to J23A Magor Westbound [congestion]. This is due to a lane one closure currently in place due to an earlier police incident."
