U.N. Secretary-General António Guterres has described humanitarian aid cuts by the United States and other countries as “a crime.”

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.

Guterres, who is on a four-day visit from March 13 to Bangladesh, was addressing a joint press briefing in Dhaka, a day after he travelled to Cox’s Bazaar on a mission of solidarity with the Rohingya refugees.