NEW : This week , Medecins Sans Frontieres called on the United Nations to identify a suitable place for more than 30,000 refugees who have crossed the border from Sudan 's Blue Nile State into South Sudan 's Upper Nile State over the past two weeks . U.S. says it has contributed $ 34 million to help refugees . Sudan will mark its first anniversary amid a worsening refugee crisis . eight refugees from U.S. have crossed the border . Prendergast describes horrific living conditions in the camps .
NEW : U.S. says it has contributed $ 34 million to help refugees . Sudan will mark its first anniversary amid a worsening refugee crisis . eight refugees from U.S. have crossed the border . Prendergast describes horrific living conditions in the camps .