In Cornwall a lane's also been closed on the A30 westbound near Scorrier. That's due to resurfacing work.
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Fire and Rescue Service says it received a 999 call to say there had been an explosion in a third floor flat within a mid terraced building.
It will be a dry night for most areas and stay mild for all. There will be clouds and some areas may experience mist or fog.
This evening will be dry and mild for all.