Snow disrupts travel across northern Europe
Thousands of flights and train services have been cancelled across Europe because of snow and ice, leaving many travellers stranded.
Few flights were leaving London Heathrow, Europe’s busiest airport, and one third of flights were cancelled in major hubs like Paris and Frankfurt.
Departures from Brussels airport were to be cancelled until Wednesday due to a lack of de-icing liquid.
Roads in a number of countries have been described as treacherous.