Winter night shelters for the homeless opened in Prague on Thursday. The number of beds available has more than doubled this year to over 430. The Czech capital has seen freezing night temperatures several times this week. Centres are in place in the Michle, Žižkov and Holešovice districts of the city, while a boat on the Vltava offers accommodation to the homeless all year at a charge of CZK 20 a night. City officials believe there are up to 5,000 homeless people in Prague. Eighty percent of them are men.