This is a significant incident for us and we have been left with no option but to close the motorway. I know this will cause considerable disruption to motorists today as people try and get to work, meetings and to catch flights. While we will work to get the motorway open again as soon as possible people should expect the road to be closed for some time. If anyone else is planning to travel through that area today I would ask them to delay their journey if they can, and if they must travel to allow extra time for their journey and plan an alternative route.
Traffic is being diverted off the M5 at earlier junctions and police are working to turn around those vehicles stuck between the closed junctions. Traffic is being diverted along the A38 although this is likely to result in significant congestion along that route.
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Mist and fog will not lift until the afternoon in the South West but it will warm up by the afternoon.