Sudanese President Omar al-Bashir promised Thursday to "teach a lesson by force" in southern Sudan, for its part has assured not want war feared by the community International.
Before hundreds of rampaging militiamen, Bashir denounced the inaction of the United States and the UN since the army took Southern Sudan April 10 control of the border area of Heglig, main oil field in Sudan.
"America will not impose sanctions, and the Security Council either, but the Sudanese people will punish them," he told Mr. Bashir, in uniform. "We'll give them a lesson by force (…). Heglig is not the end. This is the beginning, "he added.
Wednesday, Mr. Bashir had promised to overthrow the government of South Sudan, led since secession in July 2011 by the former rebels of the People's Liberation Movement Sudan (SPLM), calling it " insect "pest.
Faced with this verbal escalation, Juba seemed to try to calm things down, calling Wednesday for a resumption of negotiations under the auspices of the African Union (AU), and not ensuring Thursday be "at war" with Sudan.
Southern Sudan "is not at war and is not interested in a war with Sudan," said Minister of South Sudanese Information, Barnaba Marial Benjamin, referring to the Sudan as "a nation neighbor and friend, not as an enemy."
In contrast, Southern Sudan still refuses to withdraw its troops from Heglig, he claims as part of its territory even if the area is considered Sudanese by the international community.
After a devastating civil war (1983-2005, 2 million dead) that led to the partition, the two Sudans fail to reach agreement on outstanding issues, foremost among them the Boundary and sharing of oil revenues.
The verbal escalation has been accompanied since late March of violent clashes, mainly in the area of Heglig, as well as bombings by the Sudanese air force in the territory of South Sudan, raising fears the international community a new open war.
An AFP journalist who went around Heglig saw corpses littering the floor, carcasses of destroyed tanks and South Sudanese soldiers entrenched their positions through the area.
Thursday, the spokesman of the South Sudanese army, Colonel Philip Aguer, said the troops of Juba were still repulsed several attacks on the ground. The Sudanese army has for its part provided evidence regarding the progress of the fighting.
Meanwhile, the rebel Justice and Equality Movement (JEM), the most militarized rebel groups in Darfur (western Sudan), announced it has taken two military posts in a Sudanese forty kilometers north of Heglig.
Last year, the JEM and several movements in Darfur had created a common front with the rebel Sudanese states of Southern Kordofan (where Heglig) and Blue Nile, to overthrow the re ; regime in Khartoum, accused of not representing the country's diversity.
But JEM denied fighting alongside the army of South Sudan.
Tuesday, the Security Council UN has raised the possibility of sanctions against Sudan and South Sudan to persuade them to leave their "logic of war", according to diplomats.
The UN, AU, the United States and the European Union require Juba Heglig withdraw its troops, and that Khartoum stop its air raids in southern Sudan.
"Given the escalating violence in recent weeks and the rhetoric, we are very concerned," said Mark Toner Wednesday, a spokesman for the Department of U.S. State.
China, a longtime ally of Khartoum but that has not taken sides between the two countries, expressed concern Thursday, reiterating his calls for calm.
South Sudanese President Salva Kiir is expected next week in Beijing.