Renewed fighting has broken out in South Sudan between forces loyal to the president and vice-president.
A reporter in the capital, Juba, told the BBC gunfire and large explosions could be heard all over the city. He said heavy artillery was being used.
More than 200 people are reported to have died in clashes since Friday.
The latest violence came hours after the UN Security Council called on the warring factions to immediately stop the fighting.
In a unanimous statement, the council condemned the violence “in the strongest terms” and expressed “particular shock and outrage” at attacks on UN sites. It also called for additional peacekeepers to be sent to South Sudan.