In this Aug. 25, 2018 photo, severely malnourished infant Zahra is changed by her mother, right, in the village of al-Mashradah, Aslam, Hajjah, Yemen. Yemen’s civil war has wrecked the impoverished country’s already fragile ability to feed its population. Around 2.9 million women and children are acutely malnourished; another 400,000 children are fighting for their lives only a step away from starvation. (AP Photo/Hammadi Issa)
UNITED NATIONS (AP) — The U.N. humanitarian chief warned Friday that the fight against famine is being lost in Yemen, which is already facing the world’s worst humanitarian crisis with 75 percent of its 29 million people in need of assistance.