US warns South Sudan regional plan is last chance for peace

The United States warned Thursday that a new regional plan to shore up South Sudan's failing peace agreement was the last chance for Juba's leaders to end the war, now in its fourth year. US Deputy Ambassador Michele Sison told the UN Security Council that Washington will reconsider its support for the deal signed two years ago by President Salva Kiir and rival Riek Machar, if the latest effort fails. The remarks highlighted growing impatience by the US administration with leaders in South Sudan, which won independence from Sudan just six years ago with strong backing from the United States.