According to President Joe Biden, the US military has evacuated American diplomats and their families from Khartoum.
According to a US official, the process was "quick and tidy."
Three Chinook helicopters reportedly landed close to the US embassy early on Sunday to pick up fewer than 100 persons who had to be evacuated.
The French foreign ministry made an announcement that it was starting to evacuate its residents and diplomatic personnel from the nation.
The evacuation convoy, according to both Sudan's regular army and its adversaries, the paramilitary Rapid Support Forces (RSF), was fired upon after leaving the French embassy and was forced to turn around. They laid the blame for the assault on one another.
According to reports, one French national was hurt, but French authorities have not yet offered any comments.
Last week, fierce fighting broke out in Khartoum between two opposing armies.
The capital city has been heavily bombarded during the power struggle between the RSF and Sudan's regular army, resulting in hundreds of fatalities and tens of thousands of injuries.
"Today, on my orders, the United States military conducted an operation to extract US government personnel from Khartoum," Mr. Biden said in a statement.
Lt Gen Douglas Sims stated that more than 100 US soldiers from the Army Special Forces and Navy Seals flew from Djibouti to Ethiopia and then into Sudan, being on the ground for less than an hour.
It appears that the paramilitary force, the RSF, agreed not to fire on the American helicopters during their operation, despite the absence of any indication of a formal ceasefire.
The US embassy employees and troops received heartfelt appreciation from Mr. Biden as he hailed Djibouti, Ethiopia, and Saudi Arabia, saying they had been "critical to the success of our operation."
According to a tweet on its official account, the US embassy in Khartoum is currently closed since the administration is unable to evacuate individual US citizens due to security concerns.
Since violence broke out in the capital of Sudan last week, there have been two evacuations of foreign nationals.
More than 150 residents, diplomats, and representatives from other countries were transported by boat to the Saudi Arabian port of Jeddah on Saturday. Most of them were citizens of the Gulf states, along with Egypt, Pakistan, and Canada.
Biden urges ceasefire
According to US sources, a few diplomats from other nations were also evacuated as part of the US operation, and the US aircraft were not targeted by enemy fire.
The airport in Khartoum has frequently been the target of gunfire and bombardment, making evacuation planes from there impossible.
In his statement, Vice President Biden stated, "I am receiving regular reports from my team on their ongoing work to assist Americans in Sudan, to the extent possible."
He denounced the fighting, stating that the opposing armies "must implement an immediate and unconditional ceasefire, allow unhindered humanitarian access, and respect the will of the people of Sudan".
The UK claims to be investigating employee evacuation options. A hotline has been established for those who require immediate assistance, and UK citizens in Sudan are advised to inform the Foreign Office of their location.
Any UK evacuation is anticipated to be quite small and concentrated on diplomatic personnel, unlike the enormous exodus from Afghanistan in 2021.
While this is going on, the Canadian government has issued instructions to its people in Sudan to "shelter in a safe place," keep their phones charged, lock their doors and windows, and "consider leaving the country if there is a safe means to do so."
Many foreign students from Africa, Asia, and the Middle East who are also trapped in Khartoum, a city of almost 6 million people, have made desperate pleas for assistance.
On April 15, fierce fighting broke out in Khartoum.
A power battle between the RSF and Abdel Fatteh al-Burhan's loyalists in the Sudanese army lies at its core.
For a large portion of the population, electricity and secure access to food and water have been lost due to the nearly continual shooting and bombing in Khartoum and elsewhere.
A number of apparent bilateral cease-fires were broken, including the three-day period set aside to observe the Muslim festival of Eid al-Fitr, which began on Friday.
According to the World Health Organisation, more than 400 people have died and others have been injured in the violence. As individuals try to get to hospitals, the death toll is thought to be far higher.
UK citizens are stranded and frustrated
In order to examine the Sudan crisis, UK Prime Minister Rishi Sunak presided over a Cobra emergency meeting on Saturday. More discussions are anticipated on Sunday.
James Cleverly, the foreign secretary, has returned to London after cutting short a trip to the Pacific.
Some British nationals stranded in Sudan have expressed their annoyance and worry at the lack of an airlift.
Iman Abu Garga, a Briton visiting Khartoum, claimed that although she and her two children had registered as instructed, "since then, nothing," had happened.
Another British national living in Khartoum told the BBC that she felt "completely abandoned" by the British government and said that she had not received "much information at all" regarding potential evacuation plans.
Gen. Burhan had pledged to facilitate and ensure the departure of foreigners "in the coming hours," according to a statement from the Sudanese army on Saturday.
It stated that diplomats and citizens of the United Kingdom, the United States, France, and China would leave Khartoum using military transport aircraft.
The UK government declared that it was "doing everything possible to support British nationals and diplomatic staff in Khartoum".
The western part of Darfur, where the RSF first appeared, has also been severely impacted by the conflict, along with Khartoum.
Up to 20,000 people, largely women, and children, have reportedly fled Sudan in search of safety in Chad, which is on the other side of Darfur, according to a UN warning.
