The UN's top official on humanitarian issues says he sees "clear evidence of humanitarian need" in North Korea. <br /> Mark Lowcock, who is the UN's Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator,... expressed his concerns on Wednesday in a Twitter video posted from Pyongyang.<br />Lowcock says about a fifth of North Korean children suffer from malnutrition and more than half of the kids in rural areas lack clean water.<br />Lowcock's trip to the North is the first by an emergency relief coordinator since 2011. <br />
