The Met Office has issued severe snow and ice warnings as the Troll of Trondheim hits the UK with an Arctic blast.
The pre-Christmas cold snap will see temperatures sink as low as minus 10 overnight - as well as snow of up to 10-15cm in parts of Scotland.
Forecasters say biting winter air will move in this evening, with the UK Health and Security Agency issuing a cold weather alert recommending people warm their homes to at least 18C (64.4F).
