Cold weather has intensified across the UK, with heavy snow causing further disruption after overnight temperatures of almost -12C (11F) in some areas.
Amber warnings for snow are in place, covering parts of Scotland, northern England, the East Midlands, the east and south-east of England and London.
Drivers have been warned to take extra care as emergency services deal with stranded motorists and crashes.
Hundreds of schools are closed and public transport is widely affected.
Flights have been cancelled and rail operators have warned disruption will continue throughout Wednesday.
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The snow is also affecting:
- Hundreds of schools and nurseries in Scotland, which will remain closed – including all schools in Glasgow, West Lothian and Renfrewshire, along with 120 schools in Aberdeenshire
- Hundreds of schools and nurseries in England, including in Kent, Sussex, Surrey and Yorkshire, which have also been closed
- Rail services, with National Rail advising train passengers to check their journeys before travelling on Wednesday and Thursday
- More than 100 flights have been cancelled at Heathrow Airport
- British Airways said flights were likely to be affected throughout the week. For “several hours during the worst of the weather” on Wednesday, flights will be reduced “proactively” at Heathrow
- London City Airport has put all of its flights on hold as workers clear the runway of snow and Gatwick has asked passengers to check with airlines before travelling
- All operations at Glasgow Airport are suspended, but it hopes to re-open by 08:30 GMT, while some flights out of Edinburgh have been cancelled
- Newcastle Airport has warned of delays whilst the runway is cleared of snow
- Roads in Norfolk have been blocked due to vehicles getting stuck in the snow, including the A11 southbound at Wymondham and the A143 at Haddiscoe
- Part of the A1 in Cambridgeshire is shut in both directions, between the A1M junction 17 and the A6121 at Tinwell
- Highways England said the A66 in Durham is closed between the A1M and the A685 and the A59 in North Yorkshire is closed westbound after the A61 between Harrogate and Skipton
The Met Office has issued an amber warning – meaning widespread damage, travel and power disruption is likely – for Scotland and northeast England.
It has predicted up to 10cm (4in) of snow between 06:00 GMT on Wednesday and 18:00 on Thursday – although it could be as much as 40cm (15in) over hills.
Another amber warning is in place across the East Midlands, the east and south-east of England and London, with up to 15cm (6 inches) of snow predicted to fall between 00:30 and 10:00 on Wednesday.
A less-severe yellow warning for snow is in place for parts of Scotland, northern England, Northern Ireland, south-west and south-east England, the West Midlands, East Midlands and London until 23:55.
An early amber warning has also been issued for between 14:00 on Thursday and 08:00 Friday for snow and ice across the south west, Wales, the West Midlands, London and the south east.
The UK is experiencing what is predicted to be the coldest week of the winter in five years.
The lowest temperature recorded overnight was -11.7C in South Farnborough.
Elsewhere in the country, a number of places fell to minus double digits, including measurements of -11.5C in Cairnwell, Scotland, -11.4C in Ravensworth, North Yorkshire, and -10.9 in Frittenden, Kent.
On Tuesday three people died following a crash in Lincolnshire while one man died in a crash in Cambridgeshire, amid warnings of treacherous conditions on roads.
Meanwhile, 17 vehicles were involved in a crash on the A120, in Essex.
Scotland’s transport minister has warned of potentially “extreme” weather conditions later this week.
Humza Yousaf has said the amber warnings in force for many areas for Wednesday and Thursday could be upgraded to red – meaning people should take immediate action to keep themselves safe from the impact of the weather.
In Northumbria, a major incident was declared by police on Tuesday after more than 500 homes were left without power in Cowgate, Newcastle, following an underground electrical fire.
Power was later restored to the area.
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Weather warnings are expected to be in place until the weekend.
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