Motorway was closed yesterday afternoon between Junctions 47 and 48 westbound
There was chaos on the M4.
The westbound carriageway of the M4 was shut between Junctions 47 and 48, that's Penllergaer and Hendy. It was after a collision between a van and car just after 3pm.
Traffic was diverted off the motorway at Junction 47 and across the Loughor Bridge.
Towards Cardiff, there were also huge tailbacks eastbound.
What normally takes 20 minutes from Cardiff gate to Newport was taking one and three quarter hours following a multi-vehicle accident.
A caravan and two cars collided at lunchtime and four people were taken to hospital.