Geneva, Switzerland - Killings of civilians in Sudan's war more than doubled in 2025 compared with the previous year, the United Nations rights chief said Thursday, warning that thousands more dead are unidentified or remain missing.

Since April 2023, Sudan has been engulfed in a conflict between the army and the Rapid Support Forces (RSF) that has killed tens of thousands, displaced 11 million people, and triggered one of the world's worst humanitarian crises.

"This war is ugly. It's bloody and it's senseless," Volker Turk told the UN Human Rights Council, blaming both warring sides, which have so far rejected any form of humanitarian truce. He also blamed foreign sponsors funding what he called a "high-tech" conflict.

"In 2025, my office's documentation points to an over two and a half times increase in killings of civilians compared with the previous year. Many thousands are still missing or unidentified," Turk said.

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There have been no official figures on the overall death toll in the conflict.

Turk condemned what he called the "heinous and ruthless" brutalities committed, including sexual violence, summary executions, and arbitrary detentions.

He highlighted "carnage" inflicted by the RSF during an attack on the Zamzam displacement camp in April, and again in October in El-Fasher, which was the army's last foothold in western Darfur.

Sexual violence, including rape, gang rape, sexual torture, and slavery, has also surged, Turk said, with more than 500 victims documented in 2025. "The bodies of Sudanese women and girls have been weaponized to terrorize communities," he stated.

Turk added that he is "extremely worried these crimes may be repeated."

The UN's independent fact-finding mission on Sudan said earlier this month that the paramilitary siege and capture of El-Fasher bore "the hallmarks of genocide."

Since the fall of El-Fasher, the fighting has moved deeper into neighboring Kordofan where drone strikes have killed dozens at a time.

Since January, escalating drone attacks in the southern Kordofan region and beyond have "killed or injured nearly 600 civilians," Turk said, including in attacks on humanitarian aid convoys.

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The UN's resident and humanitarian coordinator for Sudan, Denise Brown, said on Thursday that access to the cities of Kadugli and Dilling in South Kordofan – long cut off by an RSF siege until the army recently lifted it – had been effectively impossible.

"We were not able to get supplies in. We had to remove our staff for their own safety," she said, after stepping off the first UN flight to Khartoum since the war began on Thursday.

Famine was declared last November in the North Darfur capital El-Fasher and in Kadugli, the capital of South Kordofan, according to a UN-backed assessment. The same assessment said Dilling in South Kordofan is also likely facing famine conditions.

Turk said both the army and the RSF continued to use "explosive weapons in densely populated areas, often without warning – showing utter disregard for human life."

Turk highlighted the "increased use of advanced long-range drones," which has "expanded harm to civilians in areas far from the front lines that were previously peaceful."

Turk also voiced concern over "the growing militarization of society," including the recruitment of children and young people into the fighting.

Several countries have been accused of involvement in the conflict.

The United Arab Emirates has been accused of arming the RSF – allegations it denies. Egypt, Iran, Turkey, and Saudi Arabia have backed army chief Abdel Fattah al-Burhan.

Turk urged "diplomatic and political pressure" to push the parties towards a humanitarian truce that leads to a permanent ceasefire.

Efforts to secure a ceasefire have repeatedly collapsed.

Burhan vowed this week to fight "until the end" and said he plans to build a "smart army" investing in technology and research.

In January, a government source told AFP the army was studying a new ceasefire proposal from the US and Saudi Arabia.

Talks mediated by the Quad – the US, UAE, Saudi Arabia, and Egypt – have stalled for months, with Burhan accusing mediators of favoring the UAE.