South Sudan: Aid agencies ramp up efforts to help refugees. In South Sudan aid organizations like MSF, ICRC and OXFAM ramp up efforts to meet the needs of the 80,000 displaced who have flooded into camps in the Awerial region. Both sides involved conflict are accused of having committed atrocities amid a wave of ethnic violence pitting Kiir's majority Dinka tribe against Machar's Nuer community. Images and soundbites.