Travel chaos caused by the snow has reached the Channel Tunnel with Eurostar cancelling of its services.
The company had been running some trains early on Tuesday, but had to suspend its London to Paris and Brussels operations when conditions worsened across the Channel.
It said it hoped to run an amended service on Wednesday with longer journey times.
In a statement on its website, Eurostar confirmed: "Severe weather conditions overnight in Northern France and Belgium have led to the closure of the high speed line.
"Eurostar is not able to run any services for the remainder of the day.
"Passengers will not be able to travel on Eurostar services today and should not come to our stations.
"Exchanges and refunds will be available to affected passengers."
It comes after a second day of misery for travellers caused by the unseasonably cold weather.
There were huge traffic jams and trains were cancelled, with Kent and Sussex among the worst-affected areas.
And about 500 passengers on a ferry from Ireland to France were forced to spend the night anchored off shore after the vessel failed to dock.
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