Hundreds of drivers were stranded overnight and around 100 children forced to sleep at their school after fresh snow and ice brought more havoc to the UK.
Scotland bore the brunt of the latest blast of wintry weather, with scores of cars across the central belt stuck in icy gridlock and up to a foot of snow.
Around 150 people also spent the night in a school in South Lanarkshire after the bad weather prevented pupils, parents and staff from getting home.
North-east Scotland and north-west England have been warned about fresh snow, with widespread icy roads expected up and down the country after temperatures plunged as low as minus 15C.
But there looked to be some brief respite from the freezing conditions later this week – with many places expected to have their first frost-free night for more than two weeks on Thursday.
At least nine people have so far died in the big freeze, with an elderly man found dead in snow at a Lincolnshire caravan park the latest victim.
Across a bitterly cold Scotland overnight, scores of drivers were stuck in their cars on the country’s M8 motorway, with up to 500 vehicles also stranded on the M80 and A80 roads.
The Scottish Government held an emergency meeting about the crisis as police tried to reach motorists stranded on major routes. Chief Inspector Stewart Carle of Strathclyde Police advised stuck drivers to stay in their cars rather than venture out.
Transport Minister Stewart Stevenson said the country was in the grip of the “worst snow and ice conditions since the 1960s”.
Glasgow and Edinburgh Airports were open after closing for a time on Monday due to the weather conditions, but officials warned travellers to check with their airlines. Belfast International and London City airports also warned of delays and cancellations due to fog and freezing weather.