The UN Security Council has given South Sudan’s warring sides a month to reach a peace deal or face possible sanctions.
A resolution drafted by the United States narrowly won backing in the 15-member council, picking up nine votes.
Six countries abstained, including Russia, China and Ethiopia, a key player in regional peace efforts.
South Sudan won independence from Sudan in 2011, with critical backing from the United States, which remains Juba’s biggest aid donor.
But the US administration has grown increasingly frustrated with President Salva Kiir’s government as the brutal war grinds on, now in its fourth year.