8F), the coldest mid-December for many decades. Nine others have died on the capital's streets in recent days and 13 have perished in fires as they tried to heat their apartments. Another man died overnight in Yeisk in the southern region of Krasnodar. Fifteen people have died from the cold in Poland as temperatures have plummeted to around -20 Celsius. Seven frozen corpses were collected from the streets of the Romanian capital on Tuesday. Rough seas, low visibility and high winds closed Romanian Black Sea ports and trapped two U.S. warships taking part in a naval exercise. Power was cut to some 250 villages in the south and east of the country. Motoring organisations across Europe pleaded with drivers to leave their cars at home to prevent further loss of life from the biting cold and ice. Radio reports described roads in Luxembourg as "veritable skating rinks". In London, the government was moving homeless youths into one of the capital's grandest buildings, Admiralty Arch on Trafalgar Square. The 60 youngsters, who normally sleep rough on the streets, will be allowed to stay until March in the former naval headquarters, which enjoys views of Buckingham Palace. Overnight snowfalls in southern England forced some schools to close and made the morning journey to work a misery for millions. In Spain, where two fatal road accidents were blamed on the weather on Tuesday, authorities issued warnings of heavy rain, high winds and possible floods. In southwestern Germany, a sudden warm front brought rain that fell upon frozen ground and created a sheet of ice that caused hundreds of accidents. Police said several cars and trucks on the motorway near Freiburg had skidded and flipped off the road.