(CAPE TOWN, South Africa) — Months of drought in southern Africa triggered by the El Niño weather phenomenon have had a devastating impact on more than 27 million people and caused the region’s worst hunger crisis in decades, the United Nations’ food agency said Tuesday. The World Food Program warned it could become a “full-scale human catastrophe.” [time-brightcove not-tgx=”true”] Five countries — Lesotho, Malawi, Namibia, Zambia and Zimbabwe — have declared national disasters over the drought and resultant hunger.