People pass by damaged cars and buildings at the central market in Khartoum North
People pass by damaged cars and buildings at the central market during clashes between the paramilitary Rapid Support Forces and the army in Khartoum North, Sudan April 27, 2023. Reuters

Sudan's army said on Thursday that it would prolong a ceasefire by 72 hours, but violence continued to rock the capital Khartoum and western Darfur region and there was no confirmation of a truce extension by the paramilitary force it was fighting.

Hundreds have died and tens of thousands fled for their lives in two weeks of conflict between the army and rival Rapid Support Forces (RSF).

Together, they toppled a civilian government in an October 2021 coup but are now locked in a power struggle that has derailed an internationally backed transition to democracy and is threatening to destabilise a fragile region.

The army on Wednesday said it agreed to a new three-day ceasefire through Sunday proposed by a regional African group following one mediated by the U.S. and Saudi Arabia due to expire on Thursday night. On Thursday, the military reiterated it would extend the truce and said it would honour it unilaterally.

There was no immediate word from the RSF.

The army claims it controls most of Sudan's regions and is defeating a large RSF deployment in Khartoum where some residential areas have turned into war zones.

Despite a partial lull in fighting since the first 72-hour ceasefire started, air strikes and anti-aircraft fire could be heard on Thursday in the capital and the nearby cities of Omdurman and Bahri, witnesses and Reuters journalists said.

The White House on Thursday said it was concerned by the ceasefire violations, adding that the situation could worsen at any moment and urging U.S. citizens to leave within 24 to 48 hours.

Fighting has spread to the vast Darfur region, where conflict has simmered ever since civil war erupted two decades ago.

The Darfur Bar Association, a rights group, said at least 52 people had died in attacks by well-armed "militias" on residential neighbourhoods in the city of El Geneina, as well as its main hospital, main market, government buildings and several shelters for internally displaced people.

Militiamen from nomadic Arab tribes entered El Geneina as the fighting between the RSF and army created a security vacuum in recent days, said one resident, who asked to withhold his name due to fear of retribution. They were met with armed members of the Masalit tribe, with clashes extending across the city, causing a new wave of displacement.

El Geneina, Sudan's western-most city, has been the site of repeated tribal conflicts in recent years, leading to people being pushed out of their homes multiple times.

"In the past, it would be in one neighbourhood and the authorities would get involved," the resident said. "But because of what's going on, there's been no intervention."

'EVERYWHERE YOU HEAR GUNSHOTS'

At least 512 people have been killed and close to 4,200 wounded by the fighting since April 15.

The conflict has limited food distribution in the vast nation, Africa's third largest, where a third of the 46 million people were already reliant on humanitarian aid.

The top U.N. aid official in Sudan, Abdou Dieng, said "very little can be done" in terms of humanitarian assistance.

"We're extremely worried about food supply," Dieng told told reporters in New York via phone from Port Sudan where most senior U.N. staff had relocated. "Our aim is to go back as quick as possible to Khartoum if the situation allows it."

The Sudan Doctors' Union said 60 of 86 hospitals in conflict zones had stopped operating.

Many foreigners remain stuck in Sudan despite the evacuation of thousands. Sudanese civilians, who have been struggling to find food, water and fuel, were streaming out of Khartoum.

Some 16,000 people have entered Egypt from Sudan including 14,000 Sudanese citizens, the Egyptian Foreign Ministry said. The U.N. says some 20,000 refugees have already gone to Chad.

At International University of Africa in Khartoum, where thousands of students waited to leave, food is running out, there is no water for toilets and showers and the power has gone, said Nigerian law student Umar Yusuf Yaru, 24.

"Even as we sit here, almost everywhere you can hear gunshots. We are not safe here," Yaru said via Zoom, as some female students could be heard crying in the background.

Frictions had been building for months between Sudan's army and the RSF, whose 2021 coup came two years after a popular uprising toppled long-ruling Islamist autocrat Omar al-Bashir.

A man walks past near a damaged car and buildings at the central market in Khartoum North
A man walks past near a damaged car and buildings at the central market during clashes between the paramilitary Rapid Support Forces and the army in Khartoum North, Sudan April 27, 2023. Reuters
People walk near damaged car and buildings at the central market in Khartoum North
People walk near damaged car and buildings at the central market during clashes between the paramilitary Rapid Support Forces and the army in Khartoum North, Sudan April 27, 2023. Reuters
Electricity workers rehabilitate the power lines at the central market in Khartoum North
Electricity workers rehabilitate the power lines at the central market during clashes between the paramilitary Rapid Support Forces and the army in Khartoum North, Sudan April 27, 2023. Reuters
Fleeing Sudanese seek refuge in Chad
A Sudanese woman, who fled the violence in her country, tries to get water from a barrel near the border between Sudan and Chad in Adre, Chad April 26, 2023. Reuters
U.S. Citizens Evacuate to United States from Sudan
U.S. Mission personnel assigned to the U.S. Embassy in Khartoum, Sudan, arrive at the Dulles International Airport, Virginia, United States in this photo taken on April 24, 2023 and released by U.S Marine Corps on April 26, 2023. U.S. Marine Corps/Handout via REUTERS . Reuters