Heavy snow has hampered travel in the north-east of England and Cumbria, with motorists urged to avoid journeys unless they are absolutely necessary.
Some of the first snow fell in Alston, Cumbria
A section of the northbound A1 in Northumberland was closed due to the high number of stranded vehicles.
In east Cleveland, police patrols assisted scores of drivers involved in minor accidents in blizzard conditions.
The Met Office has predicted up to 10cm of snow in parts of Northumberland, County Durham and Cumbria.
Other parts of England, including Yorkshire and Lincolnshire, were also hit by freezing conditions.
A spokesman for Northumbria Police said: "A number of vehicles have become stuck in the snow on the northbound A1 near Morpeth and as a result it has been decided not to allow any more through until conditions improve and recovery has taken place."
Cleveland Police described road conditions as "treacherous" and urged drivers to postpone journeys until weather conditions improved.
In neighbouring County Durham, police said most roads were passable, but only with care.
In South Cumbria, police closed the A5092 at Grizebeck, and there were reports of icy conditions on higher roads, including those near Corney Fell and Cold Fell.
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