South Sudan is "back to war", a spokesman for the vice-president has told the BBC, as rival factions clash and hundreds have been reported killed.
Forces loyal to Vice-President Riek Machar say government troops attacked their positions in the capital, Juba.
14:23 Extinguishing Donald Trump’s Swedish Immigration 'Fire'19
22:09 Trump taps Army Lt. Gen. H.R. McMaster as his new national security adviser18
20:23 REPORT: National Security Council Aide Dismissed After His Criticisms of Trump26
00:45 South Korean court approves arrest of Samsung heir22