The African Union has called on Sudan to stop its aerial bombardment of South Sudan and for both countries to cease hostilities.
Sudan and South Sudan must withdraw their forces from the disputed border region and keep their troops within their borders, the AU Peace and Security Council said in a statement released after a council meeting on Tuesday night.
The AU also said the two neighbouring countries should stop issuing inflammatory statements and propaganda that could escalate the conflict.
South Sudan President Salva Kiir had said earlier that Sudan had "declared war" on his country following the north's repeated bombing of the south, although neither side has officially declared war as of yet.
Sudanese President Omar Al-Bashir gave a fiery speech last week in which he said there will be no negotiations with the "poisonous insects" who invaded the oil rich town of Heglig earlier this month.
The AU said Sudan and South Sudan must resume negotiations over their disputes, which collapsed earlier this month in Ethiopia when two the countries started attacking each other.
In January the landlocked South Sudan shut down oil production and accused Sudan of stealing hundreds of millions of dollars worth of oil it shipped through its northern neighbour.
Sudan responded by bombing the South's oilfields and earlier this month South Sudan invaded Helgig.
South Sudan's government spokesman Barnaba Marial Benjamin said that troops from the south had withdrawn from the Heglig on Monday, but that Sudan continued with aerial bombardment of the south that has killed at least 16.
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