Freezing conditions are continuing to disrupt transport in north-west Europe, although heavy snow has eased.
Large parts of northern France have been placed on ice alert, with officials describing the situation as “very complicated”.
Frankfurt airport had to cancel more flights on Wednesday, after hundreds of passengers remained stranded overnight.
Meanwhile the Eurostar high-speed train has resumed its service between London, Paris and Brussels but with delays.
High-speed trains between Paris and other French regions were also restored.
France’s SNCF rail company put up more than stranded 1,000 travellers in hotel rooms and sleeping carriages overnight, it said.
“For 24 hours, 10,000 employees have been working to remove snow from the rail lines and re-establish service,” SNCF said in a statement.
But while trains have resumed, road conditions in France remain difficult as snow has turned major motorways into ice traps, French Interior Minister Manuel Valls said.
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