Qatari planes are to be banned from Egyptian and Saudi air space, as a growing diplomatic row in the Gulf threatens large-scale air disruption.
The BBC reports that several countries have cut ties with the tiny Gulf state over accusations of supporting extremism in the region.
Air, land and sea links have been halted to the country from Saudi Arabia, the UAE, Egypt and Bahrain.
Qatar denies backing militants, including so-called Islamic State (IS), and said the move was “unjustified”.
Sudan’s foreign ministry offered to mediate between all sides “in order to achieve calm and reconciliation”.
This major split between powerful Gulf countries, who are also close US allies, comes amid heightened tensions between Gulf countries and their near-neighbour, Iran.