NEW : `` It 's dozens and dozens , scores of casualties , '' the head of U.S. Embassy says . NEW : UNMISS said Hilde F. Johnson , special representative of the U.N. secretary-general , called on `` all parties in the current situation to refrain from any community-motivated violence . '' Hundreds civilians have fled to U.S. Embassy bases in the city , he says . United Nations says the U.N. Security Council suspending normal operations until further notice . Sporadic gunfire still rattling Juba , diplomats say .
NEW : `` It 's dozens and dozens , scores of casualties , '' the head of U.S. Embassy says . NEW : Hundreds civilians have fled to U.S. Embassy bases in the city , he says . United Nations says the U.N. Security Council suspending normal operations until further notice . Sporadic gunfire still rattling Juba , diplomats say .