NEW : U.N special representative for DR Congo warns of `` vast humanitarian crisis '' NEW : U.N. chief Ban Ki-moon says he is concerned about the situation in DR Congo, where more than 1 million people have been displaced by fighting and famine. Parents and children have to hide under the bed , in the bushes or wherever they would feel safe . A rebel spokesman says M23 fighters plan to push on to Kinshasa , capital of DR Congo . The U.N. Security Council backs a resolution calling for sanctions against rebel leaders .
NEW : U.N special representative for DR Congo warns of `` vast humanitarian crisis '' NEW : U.N. chief Ban Ki-moon says he is concerned about the situation in DR Congo, where more than 1 million people have been displaced by fighting and famine. A rebel spokesman says M23 fighters plan to push on to Kinshasa , capital of DR Congo . The U.N. Security Council backs a resolution calling for sanctions against rebel leaders .