Live updates as M4 crash involving four vehicles causes miles of delays
A crash on the M4 involving four vehicles is causing major delays during rush hour traffic.
The accident has taken place on the M4 westbound before junction 46 A48 Clasemont Road, Llangyfelach, Swansea.
There is congestion as a result back to junction 43 Llandarcy, with travel time estimated to be at 40 minutes.
There is queuing traffic for five miles.
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