Sudan's paramilitary Rapid Support Forces and allies have signed a charter that paved the way for the establishment of a parallel government, as Sudan's army made advances recently against the rival groups.

Sudan's paramilitary Rapid Support Forces and its allies have agreed to form a parallel government, they said Sunday, despite warnings such a move could further fragment the war-ravaged country. A spokesman for UN chief Antonio Guterres warned the move could "increase the fragmentation of the country and risk making this crisis ven worse".