A girl holds a snack at a school, during the visit of Pierre Krahenbuhl, commissioner-general of the United Nations Relief and Works Agency (UNRWA), background left, in Yarmouk refugee camp in Damascus, Syria, Sunday, April 12, 2015. Krahenbuhl, visited refugees fro visited refugees from the embattled Palestinian camp of Yarmouk in Damascus. The Palestinians fled Yarmouk, where heavy fighting has raged since Islamic State militants stormed the district more than a week ago, for a nearby government-controlled area of the Syrian capital. (AP Photo)