Snow drifting is making the A591 impassable at Thirlmere. Cumbria Police said a JCB digger was working to clear the snow, but drivers were advised to avoid the area.
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49-year-old Callum Phillips was driving at speeds of up to 73mph shortly before the collision which killed 39-year-old Ryan Baird.
Local businesses have been working overnight to move chiller units into the school to cool classrooms down for students taking GCSEs.
Lee Clayton was caught as he tried to deal class A substances to an undercover security officer at the music festival in July last year.