LONDON - Forecasters warned Saturday that Britain would continue to shiver in icy conditions for at least another week as the countrys transport networks struggle to overcome the Arctic freeze. Temperatures plummeted to as low as -10C in the South East of England overnight, bringing an end to a week of major commuter disruption, school closures and tragedy. Two teenage girls were killed in a road crash in Cumbria, with police claiming that treacherous road conditions appeared to be a factor in the collision. Two pensioners also died after falling in their gardens in sub-zero temperatures while a motorist who stopped to help a stranded driver died after he was struck by another vehicle. British Transport Secretary Philip Hammond on Friday summoned Government chiefs for an hour-long emergency weather meeting to stocktake and discuss preparations for the weekend. Though the worst of the snow has fallen, temperatures remain low for the time of year and rain is set to make Britains frozen roads and pavements even more dangerous. The problem is the ground temperature is lower than the air temperature so makes thawing difficult, said Aisling Creevey, a forecaster. Its going to be really cold into the next 10 days. AFP adds: Europes early cold snap claimed more lives Saturday, while a wildcat strike by Spanish air traffic controllers added to the travel chaos caused by snow, ice, and in some countries flooding. Freezing weather killed another nine people in Poland over a 24-hour period, bringing the death toll there to 46 since the beginning of November, police said. Temperatures there dropped as low as minus nine degrees Celsius (16 Fahrenheit) overnight Friday. In the neighbouring Czech Republic, it was minus 20 Celsius (minus 4 Fahrenheit) overnight, disrupting rail traffic as the ice seized up signals at several junctions. French police blamed icy driving conditions for three deaths in the east of the country after a car slid off the road and into a canal near Plobsheim late Friday. Neither the driver nor the passengers had been drinking, police added. Weather forecasters warned of black ice in northern France that would make driving particularly dangerous. Officials in the French Alps meanwhile warned of the risk of avalanches on Sunday in ski stations already open because of the early snow. The danger would increase Monday with fresh snowfalls and a subsequent thaw, they added. Civil aviation officials asked airlines flying out of Charles de Gaulle, Paris main airport, to cut back their flights by 20 percent during daylight to ease the pressure caused by the snow and ice there. In Spain, the disruption to air traffic came mainly from a wildcat strike by air traffic controllers, which ran from Friday to Saturday evening, hitting an estimated 300,000 passengers over a long holiday weekend. In Switzerland, Genevas University Hospital cancelled non-urgent operations scheduled for Monday and Tuesday to cope with a massive flow of broken bones caused by people slipping and falling in icy conditions. Operating theatres were working overtime through the weekend. In Carinthia, southern Austria, some 800 homes were still without electricity Saturday and traffic was hit badly as trees were sent crashing on to roads by the weight of heavy snowfalls. Germany was enduring sub-zero temperatures with more snow forecast Sunday. Further east, officials evacuated thousand of people in Albania, Bosnia, Montenegro and Serbia from their homes as days of heavy rain caused flooding. The situation was particularly serious along the river Drina, part of which runs along the border between Bosnia and Serbia. Bosnia declared a state of emergency in the eastern cities of Bijeljina, Visegrad and Zvornik. Albanian soldiers have since Wednesday been working to rescue people in the northern regions of Lezha and Shkodra cut off by the flooding, in what the authorities there have declared a natural catastrophe. In Albania alone, 9,000 have had to be evacuated over the past week and thousands of hectares of farmland have been flooded.