After the heaviest snowfall in the French capital Paris for nearly 25 years thousands have spent the night in school halls and Municipal buildings. Flights were cancelled and many passengers slept to the airports. Interior Minister Brice Hortefeux asked drivers to leave their vehicles at home after 11cm of snow fell on Paris.The bad weather also hit air, rail and road traffic in Germany overnight. About 3,000 passengers at the country's biggest airport, Frankfurt, had to be booked on to other flights. Berlin airports were said to be running low on de-icing fluid.