U.N. Secretary-General Antonio Guterres is visiting Rohingya refugees in Bangladesh as their food rations face drastic cuts amid a funding shortfall, threatening already dire living conditions in the world’s largest refugee settlement.

U.N. Secretary-General António Guterres said Friday that the humanitarian aid cuts by the United States and other countries in Europe “are a crime.” He made the comment during a four-day visit to Bangladesh where he is assessing the plight of more than 1 million Rohingya refugees whose future remained uncertain over

Antonio Guterres’ visit comes after WFP says it may have to halve food vouchers for Rohingya starting next month.