Prime Minister Rishi Sunak has chaired an emergency COBRA meeting over the “extremely concerning” situation in Sudan.
The UK plans to evacuate diplomats and nationals from Sudan, according to the head of the Sudanese army.
The US, France and China are also braced to bring out nationals in the face of deadly clashes.
A UK government spokesperson said: “We recognise that the situation is extremely concerning for British nationals trapped by the fighting in Sudan.
“We are doing everything possible to support British nationals and diplomatic staff in Khartoum, and the Ministry of Defence is working with the Foreign Office to prepare for a number of contingencies.”
Two COBRA meetings also took place yesterday.
Sky News understands Britain had put troops and aircraft on standbyat an overseas base in case they are needed to airlift embassy staff and UK citizens from the country.
A statement by the Sudanese military citing army chief Abdel Fatteh al Burhan said: “It is expected that the process of evacuation will begin in the coming few hours, as the United States, Britain, France and China will evacuate their diplomats and nationals by air with military transport planes belonging to their armed forces from Khartoum, and it is expected to start immediately.”
It follows promises by rival Mohamed Hamdan Dagalo, leader of the paramilitary Rapid Support Forces (RSF), to open airports for evacuations.
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Diplomats from Saudi Arabia have already been taken out of the coastal city of Port Sudan and Jordan’s diplomats are due to follow suit.
British forces could also deploy to other airfields close to Sudan.
The United States and France – close allies of the UK – have bases in Djibouti, in the Horn of Africa.
Prime Minister Rishi Sunak spoke to the president of Djibouti, Ismail Omar Guelleh, on Friday about the violence in Sudan, which was triggered by the two warring generals.
There are thought to be dozens of UK diplomats and other officials at the embassy in Khartoum as well as hundreds of UK citizens in Sudan. The figure rises into the thousands if dual nationals are also included.
Fierce fighting has gripped Sudan for the past few days as the army and RSF wage a power struggle, which has left hundreds of people dead and forced residents to hide in their homes.
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3:24
Briton stuck in Sudan: ‘It’s grim’
Speaking to Sky News from the northwestern city of El Fasher in North Darfur, some 802 miles (1,290km) by road from Khartoum, humanitarian aid worker Thomas Okedi said: “The challenge in El Fasher now is that people are lacking basic services. There is no electricity in the city and right now it is 41C (105F). There is no water in households. Food is fast running out in the city.”
Mr Okedi, who works for the Norwegian Refugee Council added: “The challenge is humanitarian workers do not have any guarantee of safety to access populations in need, so nothing is happening in terms of humanitarian work.”
He urged international action to ensure that supplies could get through to those in need.
The latest conflict has forced thousands to flee the fighting and cross the border into Chad, where refugee camps were already under pressure from people displaced by long-standing violence in Darfur.
A UK government spokesperson confirmed the Ministry of Defence is supporting the Foreign Commonwealth and Development Officer “with prudent planning for various contingencies”.
The spokesperson added: “We are coordinating across government and with our international partners to provide the best ongoing consular assistance to British nationals and support for our diplomatic staff. We will continue to issue updates as the situation develops.”
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0:36
Fierce fighting continues in Sudan
The UK could launch its own evacuation mission or join any multinational effort, depending on the level of risk government ministers were willing to take given that it would involve deploying military forces into a country where active fighting is taking place.
UK troops could potentially deploy across the border into the vast country by land or helicopter to facilitate any evacuation.
Another evacuation option for the UK would be to ask the United States or France, which have larger military footprints in the region, to assist with the rescue of Britons.
Mr Yoon’s presidential security service prevented dozens of investigators from arresting him after a standoff which lasted nearly six hours on 3 January.
The Corruption Investigation Office for High-Ranking Officials and police responded by pledging more forceful measures to detain Mr Yoon while they jointly investigate whether his martial law declaration on 3 December amounted to an attempted rebellion.
The National Police Agency convened multiple meetings of field commanders in Seoul and nearby Gyeonggi province in recent days to plan their detainment efforts, and the size of those forces fuelled speculation that more than 1,000 officers could be deployed in a possible multi-day operation.
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1:25
From 3 January: South Korea protesters clash with police
Anti-corruption agency and police officials met representatives of the presidential security service on Tuesday morning for unspecified discussions regarding efforts to execute the detention warrant for Mr Yoon.
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It was not immediately clear at the time if any kind of compromise was reached.
What happened on 3 December?
Mr Yoon declared martial law and deployed troops around the National Assembly at the beginning of last month.
It lasted only hours before politicians managed to get through the blockade and voted to lift the measure.
His presidential powers were suspended when the opposition-dominated assembly voted to impeach him on 14 December, accusing him of rebellion.
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2:05
How six hours of martial law unfolded in South Korea
Mr Yoon has argued his declaration of martial law was a legitimate act of governance, calling it a warning to the main liberal opposition Democratic Party which he has described as “despicable pro-North Korean anti-state forces”.
He claimed the party used its legislative majority to impeach top officials and undermine the government’s budget.
Over the past two weeks, thousands of anti-Yoon and pro-Yoon protesters have gathered daily in competing rallies near his office in Seoul, in anticipation of the second detention attempt.
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A Gaza deal is “on the brink”, President Joe Biden has said in his final foreign policy address.
The outgoing US leader said it would include a hostage release deal and a “surge” of aid to Palestinians.
“So many innocent people have been killed, so many communities have been destroyed. Palestinian people deserve peace,” he said.
“The deal would free the hostages, halt the fighting, provide security to Israel, and allow us to significantly surge humanitarian assistance to the Palestinians who suffered terribly in this war that Hamas started.”
The US president also hailed Washington’s support for Israel during two Iranian attacks in 2024.
“All told, Iran is weaker than it’s been in decades,” he said.
Mr Biden was delivering his final foreign policy address before he leaves office next week.
Monday’s address will be the penultimate time he speaks to the country before the end of his presidency. He is due to give a farewell address on Wednesday.
US and Arab mediators made significant progress overnight toward brokering a ceasefire in the Israel-Hamas war and the release of scores of hostages held in the Gaza Strip – but a deal has not been reached yet, officials said.
A round of ceasefire talks will be held in Doha on Tuesday to finalise remaining details related to a ceasefire deal in Gaza – including over the release of up to 33 hostages – officials added.
Mr Biden went on to claim America’s adversaries were weaker than when he took office four years ago and that the US was “winning the worldwide competition”.
“Compared to four years ago, America is stronger, our alliances are stronger, our adversaries and competitors are weaker,” he said.
“We have not gone to war to make these things happen.”
The Israel Defence Forces (IDF) has admitted to a “serious offence” after a Sky News investigation analysed CCTV footage showing the moment an 80-year-old Palestinian grandmother was shot in the West Bank.
Halima Abu Leil was shot during a raid in Nablus. The grandmother died soon after.
During the course of the investigation, we noted that a blue vehicle marked as an ambulance and with a red light on its roof was used by IDF troops to enter the West Bank.
Our investigation stated: “Figures who appear to be Israeli military forces exit the ambulance in the foreground. They are equipped with helmets, backpacks, rifles, and other gear.”
The use of a marked medical vehicle for a security operation could be a contravention of the Geneva Convention and a war crime – as well as Halima’s killing.
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3:25
CCTV shows Palestinian grandmother shot in IDF raid
The IDF has subsequently told Sky News: “On December 19, 2024, soldiers from the ‘Duvdevan’ unit took part in an operational mission to detain terrorists in Nablus.
“During the operation, an ambulance-like vehicle was used for operational purposes, without authorisation and without the relevant commanders’ approval.”
It added: “The use of the ambulance-like vehicle during the operation was a serious offence, exceeding authority, and a violation of existing orders and procedures.”
It also said the commander of the ‘Duvdevan’ unit was “reprimanded”.
However, it gave no update into the death of Halima, saying “the circumstances of the incident are being examined”.
The United Nations Special Rapporteur on occupied Palestinian territory Francesca Albanese watched the CCTV video and told Sky News her death could be a “war crime”.
She said: “When I look at the footage, what emerges prima facie is that there were no precautions taken – within these operations whose legality is debatable – to avoid or spare civilian life.
“No principle of proportionality because there was wildfire directed at the identified target and ultimately no respect for the principle of distinction.
“So this was a murder in cold blood and could be a war crime as an extrajudicial killing.”
According to the United Nations Office Of Human Rights in occupied Palestinian territory, Israeli security forces and settlers have killed at least 813 mostly unarmed Palestinians, including 15 women and 177 children, since 7 October 2023.