A big freeze with heavy snow and ice has caused chaos for travelers across western Europe. More than 700 flights were cancelled at Schiphol Airport in Amsterdam on Wednesday. France's aviation authority asked airlines to reduce flights by 40% at the Paris Charles de Gaulle airport. Over 100 flights were cancelled there and 40 at Orly airport. Many flights at Heathrow and Brussels also faced delays or cancellations. Eurostar services between London and Paris were disrupted. Cold weather led to travel problems on roads too. Almost half of mainland France was warned about heavy snow and black ice. Lorries were banned on some roads. Five people died in France and one in Bosnia due to weather-related accidents. In Sarajevo, 40cm of snow fell. KLM, the Dutch airline, said Schiphol Airport was running low on de-icing fluid after several cold days. Stephan Donker, a KLM spokesperson, called the situation "exceptional". Over 1,000 travelers spent the night at the airport. Hundreds of beds, food, and drinks were provided before and after security checks. The cold spell also made for rare winter scenes. Paris was covered in snow, and locals and tourists skied on Montmartre slopes and near the Eiffel Tower. Pierre, a Parisian, said, "It's exceptional, it's incredible," and that people were enjoying the view. Guinean teenager Boubacar Camara, sleeping outside Paris, said, "You just have to stay strong [and] make sure you don't die. We can't do anything about the cold. I'm not used to this at all."