BEIJING (AP) - Floods in central China's Hunan province have destroyed more than 20,000 homes, leaving thousands of poor people living in tents near river embankments, a Red Cross official said Friday. Relief workers were concentrating on providing medical care, sanitation, water and other necessities to 77,000 people left homeless when an embankment along the Yangtze River in Minzhu county, 800 miles south of Beijing, gave way in July, Solveig Olafsdottir of the Red Cross said. Floods struck Minzhu in 1995, 1996 and 1998, destroying crops and leaving residents reliant on government loans, but this is the first year homes have been completely destroyed, she said.