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Armies 'head for central Sudan' Armies 'head for central Sudan'
(about 2 hours later)
Rival troops from north and south are converging on central Sudan, a UN official has told the BBC.Rival troops from north and south are converging on central Sudan, a UN official has told the BBC.
The country was "on the brink" of a resumption of the 20-year civil war, said UN regional co-ordinator for South Sudan David Gressley.The country was "on the brink" of a resumption of the 20-year civil war, said UN regional co-ordinator for South Sudan David Gressley.
The warning follows recent clashes in the oil-rich region of Abyei, which is claimed by both sides.The warning follows recent clashes in the oil-rich region of Abyei, which is claimed by both sides.
On Tuesday, the US envoy to Sudan warned that leaders from both sides were not interested in peace.On Tuesday, the US envoy to Sudan warned that leaders from both sides were not interested in peace.
The renewed warnings come as the UN Security Council is in Sudan, trying to ease tensions in Abyei, as well as the western region of Darfur.The renewed warnings come as the UN Security Council is in Sudan, trying to ease tensions in Abyei, as well as the western region of Darfur.
"There's a gradual escalation of forces on all sides at this point in time," Mr Gressley said."There's a gradual escalation of forces on all sides at this point in time," Mr Gressley said.
Mr Gressley said he didn't think either side wanted a war, at this point, but that the situation had to be de-escalated or it could unravel the entire peace process. Mr Gressley said he did nOt think either side wanted a war, at this point, but that the situation had to be de-escalated or it could unravel the entire peace process.
BBC World Affairs correspondent Mark Doyle says that would spell a new drama in Sudan, which already has millions of war-displaced people. BBC world affairs correspondent Mark Doyle says that would spell a new drama in Sudan, which already has millions of war-displaced people.
Some 50,000 people - virtually the entire population - fled the heavy fighting in Abyei town last month.Some 50,000 people - virtually the entire population - fled the heavy fighting in Abyei town last month.
The area contains oil wells which generate billions of dollars, but our correspondent says more than money is at stake - Abyei is coming to symbolise a new breakdown in trust between the mainly Arab north and South Sudan.
The two sides signed a peace deal in 2005 and the former southern rebels joined the national government.
Under this deal, the mainly Christian and animist south is due to hold a referendum in 2011 on whether to secede.