M5 live updates as all traffic held after crash

Incident now reported as involving 'a car and van'
Inrix is now stating that the crash has involved 'a car and van'. Intially it was reported by the travel news service as a multi-vehicles' incident. It has also been clarified by Inrix that a van, not a car, has allegedly come to rest in a ditch.
Avon and Somerset Police has not confirmed the number of vehicles involved, only stating that a 'collision' has occurred.