Addis Ababa - South Sudan's rival forces have made little if any progress at talks on ending the country's civil war, the government has warned, despite intense international pressure for a deal ahead of an August 17 deadline.
Tens of thousands of people have been killed in almost 20 months of war, which has been marked by widespread atrocities on both sides.
"There are some outstanding areas where, if we don't agree, we don't need to deceive ourselves and talk of peace," Minister of Information Michael Makuei told reporters late Wednesday, after a week of talks in Ethiopia.
South Sudan's civil war began in December 2013 when President Salva Kiir accused his former deputy Riek Machar of planning a coup, setting off a cycle of retaliatory killings that has split the poverty-stricken, landlocked country along ethnic lines.
Key issues of disagreement include a power-sharing proposal between the government and rebels, part of a peace plan put forward by the regional eight-nation bloc IGAD, the Intergovernmental Authority on Development, as well as the United Nations, African Union, China and the "troika" of Britain, Norway and the United States.
Power sharing and security
On Tuesday, top rebel generals said they had split from Machar, and while the government said they had not received any official confirmation, Makuei warned it could complicate peace efforts.
"If what they have declared is true, and they have taken over the leadership of their movement, then definitely we will have to negotiate with whoever is in power," said Makuei, who is leading the government delegation at the talks.
Mediators, backed by US President Barack Obama during his recent visit to Ethiopia, have given Kiir and Machar until Monday to halt the civil war.
Diplomats say the rivals are under intense pressure to sign a deal, since failure to do so could lead to a range of punitive measures, including an arms embargo and targeted sanctions.
But they remain far apart on power sharing and security, including the proposed demilitarisation of the capital Juba, Makuei said.
Those issues would now be put before Kiir and Machar, who are expected to meet soon in Addis Ababa, he said, without giving a date for the meeting.
"Mediators are to make the necessary preparations for the principals to come and meet, and probably discuss and agree on these outstanding issues," he said.