Photo taken on Oct 7, 2013 shows locusts flying across abandoned fields along National road 35 in southwest Madagascar. An official of the United Nations' Food and Agriculture Organization (FAO) told Xinhua on Oct. 16, 2013 that as many as 4 million people in rural areas of Madagascar face food insecurity following a 21% drop in grain production in the country this year mainly caused by locust plague. [Photo/Xinhua]