Obed Eshun 
Diplomats and nationals from the UK, US, France and China are to be evacuated from Sudan by air as fighting there continues, a statement from the Sudanese army says.
Army chief Fattah al-Burhan agreed to facilitate and secure their evacuation “in the coming hours”, it said.
He is locked in a bitter power struggle with the leader of a rival paramilitary faction, the Rapid Support Forces.
The UK government said it was preparing for “a number of contingencies”.
Previous plans to evacuate foreign nationals have not been implemented because of safety fears.
A statement from the army said British, US, French and Chinese nationals and diplomats would be evacuated by air on board military transport planes from the capital, Khartoum.
The UK government said it was “doing everything possible to support British nationals and diplomatic staff in Khartoum”.
It said its defence ministry was working with the foreign office to prepare for a number of provisions, without specifying whether immediate evacuations were among those plans.
The Prime Minister Rishi Sunak chaired a Cobra meeting – an emergency response committee – on Saturday morning about the situation in Sudan.
Saudi Arabia also announced it was arranging the evacuation of its citizens and nationals of “brotherly” countries. State TV channel Al-Ekhbariyah reported that some Saudi citizens and other nationals had arrived in the port city of Jeddah on Saturday.
Khartoum’s international airport has been closed due to the violence, with foreign embassies – including the UK and US – unable to bring their citizens home.
The conflict has entered its second week despite both sides – the army and the RSF – agreeing to a three-day ceasefire to mark the Muslim holiday of Eid al-Fitr, starting from Friday.
Sporadic gunfire and air strikes were heard in the capital on Saturday despite the truce.
A former foreign minister, Mariam al-Mahdi, who is sheltering in Khartoum told the BBC the ceasefire was “not taking at all”.
“We are out of electricity for the last 24 hours. We are out of water for the last six days,” she said.
Medical teams are being targeted in the fighting, she said, adding: “There are rotting bodies of our youth in the streets.”
Fierce street battles erupted in Khartoum on 15 April after disagreements emerged between the leaders of both sides – General Burhan and the RSF’s Mohamed Hamdan “Hemedti” Dagalo – over how Sudan should be run.
They both held top positions in Sudan’s current military government, formed after the 2019 coup that ousted long-time leader Omar al-Bashir.
They were supposed to merge their forces but the RSF resisted this change, mobilising its troops which escalated into full-scale fighting last week.
The World Health Organization says more than 400 people have been killed. The death toll is believed to be much higher as people struggle to reach hospitals.
Thousands of people, mainly civilians, have also been injured, with medical centres under pressure to deal with the influx of patients.
Along with Khartoum, the western region of Darfur, where the RSF first emerged, has also been badly affected by the fighting.
The UN has warned that up to 20,000 people – mostly women and children – have fled Sudan to seek safety in Chad, across the border from Darfur.