All traffic is currently halted on a busy stretch of the M4 near Swansea following a collision. Emergency services are on their way to the scene on the M4 westbound between junction 42 at Earlswood and junction 43 at Llandarcy.
Long delays expected
Traffic Wales has warned that significant delays are anticipated in the area. Queues are already building back towards Briton Ferry, and drivers are advised to seek alternative routes.
In a statement, Traffic Wales said: "Traffic is currently on stop due to a collision. Emergency services and traffic officers en route. Expect delays in the area. More updates to follow."
Live updates
The incident was first reported at around 09:13 BST, with all traffic being held on the westbound carriageway. Motorists are urged to avoid the area if possible and to allow extra time for their journeys.
This is a developing story, and further updates will be provided as information becomes available.
