Sudan's foreign minister says Ethiopia and UAE has chosen the "wrong path" and would regret it.
The military-backed government is back in Khartoum after being driven out by its paramilitary rival.
The airport, out of action since war broke out two years ago, was due to reopen on Wednesday.
The BBC's Barbara Plett Usher visits Khartoum days after the city was recaptured by Sudan's government forces.
Our correspondent enters Khartoum just days after Sudan's army recaptured it from the Rapid Support Forces after a six-month offensive.
It follows days of heavy fighting as the army took control of areas previously held by a rival force.
The smell of death lingers over the main cemetery for Sudan's capital as the army advances in the city centre.
Residents allege terror and rape by retreating RSF fighters as the army makes gains in the capital.
The BBC’s Mohanad Hashim, in Sudan for the first time since the war began, sees what has happened to his childhood neighbourhood.
