UN Security Council extends South Sudan mission

After days of tough negotiations, the council unanimously adopted a US-drafted resolution that extends the mandate of the 14,000-strong UNMISS force to December 2017.

According to the measure, the mission will include a new regional force of 4,000 troops, which the council decided to deploy in August but has yet to hit the ground.

The resolution threatens sanctions against those who undermine South Sudan's stability and warns that the council will consider "appropriate measures" including an arms embargo "to address the evolving situation."

US Ambassador Samantha Power described the measure as an "upgrade" of the UNMISS mission, which has come under criticism for failing to protect civilians during the three-year war.

Russia, China, Venezuela and the three African countries on the council have balked at Washington's handling of the crisis in South Sudan. They oppose an arms embargo and sanctions.

UN Secretary General Ban Ki-moon harshly criticized South Sudan's leaders ahead of the vote, saying they had "betrayed their people's trust and squandered a peace agreement."

"Tens of thousands lie dead," he added before urging the council to take stronger action "including through punitive measures."

Ban warned last month that South Sudan faces a "very real risk of mass atrocities" and that peacekeepers would be powerless to stop such a bloodbath.

A recent report criticized the peacekeepers for failing to protect civilians, including women who were raped by government soldiers during heavy fighting in July not far from the gates of a UN compound in Juba.

The world's youngest nation, South Sudan descended into war in December 2013, leaving tens of thousands dead and nearly 3 million people displaced.

The country won independence from Sudan in 2011 with strong support from the United States.