Doctors at one of the last functioning hospitals in the besieged Sudanese city of el-Fasher say they've been forced to close down the facility after it was attacked.

The hospital has been supported by the medical charity Médecins Sans Frontières (MSF) which had described it as the only one left in el-Fasher where injured civilians could receive treatment.

For several days there had been reports of shells hitting the city's South Hospital, causing injuries and deaths.

But now eyewitnesses say fighters from the paramilitary Rapid Support Forces (RSF) have entered the facility.

On Saturday, they drove up to the hospital and opened fire - looting drugs and medical equipment, stealing an ambulance and assaulting staff.

"Due to the chaos, our team was unable to verify if there were any dead or wounded," the medical charity's interim head of mission in Sudan, Maximilien Kowalski, told BBC Newsday.

"The hospital is really close to the frontline, so it will remain closed for now."

Fuel, electricity and water supplies do not yet work at a nearby dilapidated hospital where MSF is having to move their el-Fasher operations, says Mr Kowalski, leaving injured civilians with nowhere to go for at least a week.

Saturday's attack is yet another sign that there are no rules in the Sudanese civil war.

The Sudanese national army, which has been fighting the RSF over the past year, has also been accused of widespread abuses.

But in this case the RSF have forced a hospital where civilians were being treated to shut down.

The paramilitary force is widely reported to be backed by the United Arab Emirates - officials there deny it.

Across the country, more than 15,000 people are estimated to have been killed since the conflict started in April 2023, while almost nine million have been forced to flee their homes - more than in any other conflict in the world.

The RSF took control of Gezira state, to the south of the capital, Khartoum, in December and has been accused of carrying out numerous abuses against civilians there - which it denies.

Last week, at least 150 people, including 35 children, were massacred by suspected RSF forces in the village of Wad al-Nourah in Gezira state.

In Darfur, rights groups have said the RSF is using rape as a weapon of war, and is targeting darker-skinned Masalit people and other non-Arab groups in a campaign of ethnic cleansing.

Several rounds of peace talks have failed to end the war, which began when the two generals leading the army and RSF respectively fell out.

UN agencies say the fighting has sparked the world’s largest displacement crisis and that millions are facing a hunger catastrophe as a result.