Hunger in Pakistan is at emergency levels after years of conflict and floods, but funding has dwindled as new crises such as Syria grab donors' attention, the United Nations food aid chief said on Sunday. (..) Although most have now returned, about half of Pakistan's population still does not have secure access to enough food, up from a little over a third a decade ago, the U.N. World Food Programme (WFP) said. Fifteen percent of children are severely malnourished, and some 40 percent suffer from stunted growth. "This is an emergency situation, both from the food security side as well as from the malnutrition side," WFP chief Ertharin Cousin told Reuters. "We need to raise the alarm." (..) Already, Cousin said, the rising cost of the refugee crisis in Syria meant it was harder to attract funds to Pakistan.