Blizzards and freezing temperatures shut down airport runways, train tracks and highways across Europe Sunday, stranding thousands of holiday travelers.
Airports in Britain, Germany, France, the Netherlands, Italy and other countries reported cancellations or delays in hundreds of flights.
Runways at both of Britain's busiest airports, Heathrow and Gatwick in London, were closed to allow snow to be cleared. Frankfurt airport in Germany canceled around 500 flights Sunday. Police were called in on Saturday to calm angry passengers.
In addition to airports in the United Kingdom, roads and railways were affected in Northern Ireland, Wales, Scotland and England. Severe weather warnings have been issued for many areas.