Emergency services have declared a major incident following a devastating multi-vehicle collision on the M4 motorway in South Wales on Thursday afternoon.
The catastrophic pile-up, involving a significant number of vehicles, has prompted a mass casualty response near Newport, with the air ambulance and numerous emergency crews scrambled to the scene.
Motorway Closed Amid Chaotic Scenes
All traffic has been halted on the M4 in both directions between junctions 23A and 24 following the serious incident. Motorists are being urgently warned to avoid the area entirely as a major emergency operation is underway.
Witnesses reported scenes of chaos with multiple emergency vehicles, including several air ambulances, descending on the motorway. The scale of the response indicates a severe and ongoing situation.
Mass Casualty Alert Activated
A full mass casualty alert has been initiated by the Welsh Ambulance Service, signalling the seriousness of the incident. Multiple ambulance crews, critical care teams, and air support are working at the scene to treat casualties.
The exact number of vehicles involved and the severity of injuries remain unconfirmed at this early stage. However, the declaration of a major incident suggests there are multiple patients requiring urgent medical attention.
Travel Chaos for Commuters
The closure is causing severe disruption on one of Wales's busiest transport routes during the afternoon commute. National Highways has confirmed the closure is likely to remain in place for a considerable period.
Drivers are being diverted via the A48, but significant delays are expected throughout the evening. Commuters are being strongly advised to seek alternative routes and allow extra time for their journeys.
This is a developing story. More updates will follow as emergency services continue to deal with this major incident.
