The crash on A30 at Crowlas near Penzance caused a large fire and closed the road on Sunday night.
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A light breeze winds across the region, with clouds and rainy spells. There may be mist or fog in places.
Tonight will see light winds across the region, accompanied by cloudy skies, outbreaks of rain and mist and fog spreading north overnight.
Campaigners fighting the abuse chose Bristol bus station to try to educate the public on a growing problem.