The United Nations will do all it can to help prevent food rations being cut for Rohingya refugees in camps in Bangladesh, U.N. Secretary-General Antonio Guterres said on Friday during a visit to the world’s largest refugee settlement.

Bangladesh says repatriation of the refugees to Myanmar is the ultimate solution. The Buddhist-majority Myanmar has been accused in an international court of genocide against Rohingya. Complexities over verification and other diplomatic and political issues have made the future of the refugees bleak.

United Nations Secretary General António Guterres has called on the international community to urgently provide humanitarian support for the hundreds of thousands of Rohingya Muslims living in dire conditions in Bangladeshi refugee camps.