Residents told the BBC that there were devastating attacks on camps of thousands of people fleeing the Sudanese civil war.
One person in the Zamzam camp described the situation as “extremely disastrous” while another said things were “terrible”.
The UN said more than 100 civilians, including at least 20 children and a medical team, were killed in a series of attacks that began last week in Darfur, western Sudan.
At El Fasher and two nearby camps, the attack was blamed on the Paramilitary Rapid Support Force (RSF). It said that atrocities were created.
Zamzam and Abu Shouk camps provide temporary homes for 700,000 people, many of whom face a famine-like situation.
News of the attack was on the eve of the second anniversary of the civil war between the RSF and the army.
Clementine Nkweta-Salami, the UN Humanitarian Coordinator in Sudan, said she was “shocked and shocked” by what happened.
“This represents a series of brutal attacks on displaced people and aid workers, which again represents a deadly and unacceptable escalation,” she added in a statement.
The International Aid Relief Group said nine of its workers were “ruthlessly killed, including doctors, recommended drivers and a team leader.”
The charity said it was the last provider of critical health services in the camp, and RSF combatants were allegedly blamed.
“We learned that this is a targeted attack on all health infrastructure in the region to prevent access to health care for internally displaced persons.
“We were shocked that one of our clinics was also part of the attack – and other medical facilities in El-Fasher.”
The RSF said in a statement issued on Saturday that the attacks on civilians were not held responsible, and the scenes of Zamzam's killing were staged to discredit his troops.
A Zamzam resident working in a community kitchen contacted the BBC on Sunday morning to provide food for people in the camp, saying “many young people” were killed.
“Those who work in community kitchens were killed, and doctors who reopened hospital initiatives were killed,” Mustafa, 34, said in a WhatsApp audio message.
“My uncle and my cousin were killed. People were injured, there was no medicine or hospital to save them – they died of bleeding.
“The shelling is still in progress and we expect more attacks in the morning.”
He added that all routes from the camp were closed and it was “surrounded in four directions.”
Another resident, Wasir, said: “Nothing is there [was] Stay in Zamzam”.
“Many civilians fled, we were still trying to leave, but we didn’t succeed, all the roads were blocked, we had children.
“Death is everywhere. When I talk to you from the ditch now, there was a shelling.”
Evaluation of satellite imagery is a team of experts at Yale University on Friday said: “This attack is the most important ground attack on Zamzam… It has been the most important attack on Zamzam since the outbreak in the El-Fasher area in spring 2024.”
The Humanitarian Research Laboratory at Yale School of Public Health said it has observed that “arson attacks have burned down multiple structures and important areas of the camp center, the south and southeast”.
The war – the power struggle between the Army and the RSF – created the world's largest humanitarian crisis, forcing more than 12 million people from home and pushing the community toward hunger.
It began on April 15, 2023, after Army and RSF leaders emerged as a result of the country's political future.
El-Fasher is the last major town in Darfur under the control of the army, and the RSF has been besieged for a year.
More BBC stories about Sudan:
go bbcafrica.com More news about the continent.
Follow us on Twitter @bbcafrica,on Facebook BBC Africa Or on Instagram bbcafraca
BBC Africa Podcast
