"Across the board, there is a heightened sense of alarm over the fact that the situation is slipping out of control," Mogae told the council. "We must now stand together to do something about it."
UN chief accuses South Sudan's government of ignoring famine →
"We hope the parties will comply with the agreement in order that peace can be brought about," said Festus Mogae, chairman of the African Union's Joint Monitoring and Evaluation Commission.
South Sudan conflict peace deal again breaks apart, refugee despair grows →