Heavy snow has hit Scotland, north-east England, the Midlands and the south-east, with the north-east the worst affected area.
There has been widespread travel chaos with icy roads and up to 10cm (3.9in) of snow. Motorists have been warned not to travel unless absolutely necessary.
The snow spread into England after falling in Scotland overnight.
'Very icy'
The BBC Weather Centre said there would be an extremely wintry start to Easter morning for much of the country with "very treacherous" conditions on the roads.

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North Yorkshire Police
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A number of lorries are already stuck and the snow gates are closed on both the Cumbria and Durham sides of the A66. The Highways Agency was using snow ploughs to clear the route.