Emergency services were called to two separate incidents on opposite sides of the M4, leading to large traffic tailbacks between junctions 49 and 48, and further details of the cause of one of them have now been revealed Emergency services were called to two separate incidents on opposite sides of the M4, leading to large traffic tailbacks between junctions 49 and 48, and further details of the cause of one of them have now been revealed WalesOnline – NewsRead More