Canada Press: The United Nations said Tuesday that more than 10 million hungry people across Africa’s drought-stricken Sahel region need help and appealed for $230 million for impoverished Niger, which has been hardest hit. Niger, one of the poorest countries in Africa, has been most severely affected, with more than 7 million people — almost 50 per cent of the population — suffering from a lack of food, U.N. humanitarian chief John Holmes said. “The levels of food insecurity have begun to …