Freezing weather in northern Europe is causing severe travel disruption in some countries including the UK, with several London airports forced to close their runways and cancel many flights on Sunday night and into Monday morning.
At Heathrow, the capital's largest airport, departure boards showed several flights cancelled to European destinations on Monday morning, the day after more than 50 flights were cancelled due to fog.
Stansted airport, north of London, tweeted on Monday morning that it "remains fully open and operational", having said on Sunday night that its runway was "temporarily closed whilst we undertake snow clearing".
However, it appealed to passengers to contact their airline for information before travelling to the airport, because of likely disruption.
Ryanair, which operates many flights out of Stansted, said on Twitter on Sunday night that severe snowfall had forced the temporary closure of runways overnight at the airport and Gatwick, south of London, disrupting all scheduled flights.
A yellow weather warning remains in place for southwestern England, London and Scotland, and travel disruptions were expected to continue at least through Monday morning. Trains have been delayed and drivers of vehicles have been advised to take extra care after several accidents on the highways.
The wave of bad weather is expected to last several days.
Blizzards across Poland have also caused widespread traffic disruption and sparked avalanche warnings.
The Polish Institute of Meteorology issued a weather warning across the country on Sunday, as the "Brygida" cold weather front brought snow and strong winds to many large regions.
In the Polish area of Kopa Kondracka, volunteer mountain rescuers managed to rescue three
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