A South Sudan People's Liberation Army soldier in Heglig, on April 17, 2012. The South Sudan government eased tensions on Friday by beginning the withdrawal of all its troops from Heglig.
Credit: Adriane Ohanesian

South Sudan has accused Sudan of launching fresh ground and air strikes inside its territory, days after the world’s newest nation announced it was withdrawing its troops from the disputed oil field of Heglig to avoid all-out conflict between the East African neighbors.

Mac Paul, a South Sudanese military intelligence official, told reporters in the oil border town of Bentiu on Sunday that Sudan had killed four soldiers and wounded eleven in three waves of attacks on South Sudanese army positions, Reuters reports.

"Later on we had so many waves of attacks by SAF (Sudanese armed forces) deep inside South Sudan," Paul said, adding:

"It is a provocation because there have been both ground and aerial attacks in Teshwin (and aerial attacks in) Panakuach and Unity today and as I talk the Antonov is still hovering," he said.

However, Sudanese army spokesman al-Sawarmi Khalid denied that any airstrikes had been launched on Sunday, insisting instead that the SAF had repulsed a “major” rebel attack on the strategic town of Talodi in the state of South Kordofan, on the northern side of the border.

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Both sides’ accusations came a day after South Sudan accused Sudan of bombing its oil facilities, with a military official telling the BBC that the Unity oil field had been targeted. There are mounting concerns that all-out war between Sudan and South Sudan – which secured its independence from the north last July – is imminent.

On Friday South Sudan announced it was withdrawing its forces from the Heglig oil field, which it had occupied since April 9. Today the Satellite Sentinel Project released images of the disputed area, suggesting that key oil installations have been badly damaged during South Sudan’s ten-day occupation, according to the BBC.

On Saturday night a Muslim mob several hundred strong set fire to a Catholic church frequented by South Sudanese in the Al-Jiraif district of Sudan’s capital Khartoum, screaming insults at the mainly Christian and animist southerners as they did so.

In a statement released Sunday, the African Union called on both countries to end "senseless fighting."

"The commission urges the two parties to immediately and unconditionally resume negotiations ... to reach agreements on all outstanding issues," AU Commission Chairman Jean Ping said, the Associated Press reports

More from GlobalPost: Sudan and South Sudan fighting ends, for now

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