Rohingya refugees in crammed Bangladeshi camps say they are worried about a U.S. decision to cut food rations by half beginning next month, while a refugee official says the reduction will impact the nutrition of more than 1 million refugees and create social and mental pressure.

The U.N. World Food Programme (WFP) called on Friday for urgent funding for its Bangladesh operations, warning that a funding deficit would curb rations for the Rohingya in the world's largest refugee settlement.

Now, the $6 monthly voucher means Rohingya refugees will receive about 24 Bangladesh taka (£0.15) daily. An egg costs 13-14 taka and a banana costs 10-12 taka, Mr Rahman said, adding that it will cause severe nutritional deficiency among refugees.

The United Nations has warned it will have to cut monthly food rations to Rohingya refugees in Bangladesh from $12.50 to $6 next month, unless it can raise funds to avert a measure that would worsen hunger in the world's largest refugee settlement.