Veteran Sudanese political and religious leader Mohamed Othman al-Mirghani arrived in Khartoum from Egypt on Monday, throwing his clout against a possible agreement between pro-democracy groups and the military.
Mirghani has been based in Egypt for about a decade and his arrival follows military leaders and the former ruling Forces of Freedom and Change coalition saying they had reached understandings including the military's exit from politics.
Western, Gulf and United Nations facilitators have been trying to break a stalemate that took hold after the military seized power 13 months ago, halting a political transition following the 2019 ouster of Omar al-Bashir, who led Sudan for 30 years.
Mirghani, leader of the main faction of the Democratic Unionist Party (DUP), one of Sudan's most significant blocs, and the large Khatmiya Sufi sect, was met by thousands of followers beating drums at Khartoum's main airport.
The DUP has a strong support base in rural areas of Sudan but has lately been embroiled in a struggle between al-Mirghani's two sons - Jaafer who has aligned with rebel groups opposed to the deal, and Elhassan who has supported it.
In a filmed statement released on Wednesday, the elderly Mirghani rejected a hasty agreement and foreign intervention in the political crisis, and assigned Jaafer with closing ranks in the party as his deputy.
"Hasty steps in the wrong direction and the rush to offer solutions before their time can bring about great harm," he said, recalling past experiences of foreign-brokered agreements.
Three DUP sources said Mirghani's return aimed to end the dispute in favor of Jaafer and against the deal, a move they said threatened to fracture the party further.