Britain faces its harshest winter weather in months as temperatures plummet to -9°C and the Met Office issues yellow warnings for snow and ice across England, Scotland, Wales and Northern Ireland.
The warnings cover vast swathes of the country, with Scotland bearing the brunt of the Arctic conditions. Commuters face severe disruption during rush hours as icy stretches form on untreated roads and pavements, whilst several centimetres of snow threaten to bring transport networks to a standstill.
Northern England, the Midlands and parts of the South East are all under snow and ice warnings. Scotland faces the most severe conditions, with alerts covering most of the country as forecasters predict the lowest temperatures there. Wales and Northern Ireland are also braced for icy conditions and wintry showers.
An Arctic air mass sweeping across Britain is driving the dramatic temperature drop. Even moderate winds will make the bitter cold feel worse, the Met Office warns, urging the public to monitor forecasts as conditions change rapidly.
Transport bosses are telling commuters to check services before travelling and allow extra time for journeys. Drivers must prepare vehicles for winter conditions - checking tyres, topping up screenwash and packing emergency kits. Pedestrians should wear proper footwear and take extra care on slippery surfaces.
Residents are also advised to dress in layers, keep warm and check on vulnerable neighbours during the cold snap.
Source: Met Office