IGAD had offered to mediate between the heads of the Sudanese Armed Forces, SAF, and the paramilitary Rapid Support Forces, RSF.
The mediation efforts by the East African leaders included hosting a meeting - to which leaders of the rival forces had agreed.
Sudan’s foreign ministry said in a statement that dealings with IGAD were suspended after the regional group added the nation to the agenda of a meeting scheduled for Jan. 18 in Uganda’s capital, Kampala, and invited RSF leader Mohamed Hamdan Dagalo, known as Hemedti, to attend.
Hemedti recently emerged from months under cover to visit several African countries and meet with Sudanese pro-democracy political figures.
Conflict in Sudan erupted in mid-April over a plan for a political transition away from military rule. It has caused a major humanitarian crisis, devastated the capital Khartoum, and sparked ethnically driven killings in Darfur.
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