The United Nations will increase the food ration for each Rohingya refugee in Bangladesh by $2 a month, to $10, from Jan. 1, the World Food Programme (WFP) said on Tuesday, as it thanked donors for coming to the rescue of a cash-strapped effort. The United Nations had cut food aid last year to the refugees by a third, to $8 each every month, as it had raised less than half of the $876 million required to support them.