The top United Nations official in South Sudan is urging the U.N. Security Council to use its clout to prevent the world’s newest nation from again plunging into civil war.

South Sudan’s main opposition party says a peace agreement that ended a five-year civil war has collapsed, following the arrest of its leader Riek Machar a day earlier.

The top U.N. official in South Sudan is warning that the country is teetering on the edge of renewed civil war.

The U.N. Security Council is demanding an immediate end to all fighting in South Sudan and is pushing for swift progress by the government to ensure that delayed elections are held peacefully and freely in December 2024.