Christmas travellers are facing further transport chaos as heavy snow falls across many parts of the UK.
Hundreds of drivers spent much of the night stuck on the M6 in Greater Manchester, amid disruption on the roads, railways and airports.
Gatwick Airport shut its runway until 1500 GMT, and British Airways cancelled all Heathrow flights until 1700 GMT.
Heavy snow warnings are in place across the UK, with "very heavy" alerts for London, the Home Counties and Surrey.
BA advised all passengers on BA flights during times affected not to travel to Heathrow on Saturday, and warned of severe disruption at all London airports. BBC News