Medical aid agency MSF said on Friday it has been forced to suspend its activities at one of the few remaining hospitals in southern Khartoum due to repeated attacks, cutting off yet another lifeline for those who remain in the Sudanese capital.

War has been raging in Sudan since April 2023, sparked by a power struggle between the Sudanese Armed Forces and the paramilitary Rapid Support Forces (RSF) ahead of a planned transition to civilian rule, triggering the world's largest displacement and hunger crisis.

The hospital, which lies in territory controlled by the RSF, helped treat the victims of frequent airstrikes by the Sudanese Armed Forces, as well as hundreds of malnourished women and children in an area where two neighbourhoods have been judged at risk of famine.

"In the 20 months MSF teams have worked alongside hospital staff and volunteers, Bashair Hospital has experienced repeated incidents of armed fighters entering the hospital with weapons and threatening medical staff, often demanding fighters be treated before other patients," MSF said in a statement.

"Despite extensive engagements with all stakeholders, these attacks have continued in recent months. MSF has now taken the very difficult decision to suspend all medical activities in the hospital."

The fighting in Sudan has cut off up to 80% of hospitals in conflict areas, where millions who cannot afford to escape the violence remain. Civilians face frequent air and artillery fire and hunger as supplies are blocked by both warring parties and prices skyrocket.

Medical facilities, including MSF-supported ones that have suspended operations, have frequently come under attack by RSF soldiers demanding treatment or looting supplies.

Bashair Hospital has served more than 25 000 people, MSF said, including 9 000 hurt by blasts, gunshot wounds, and other violence.

"Sometimes dozens of people arrived at the hospital at the same time after shelling or airstrikes on residential areas and markets," MSF said in the statement, citing an incident on Sunday where an airstrike one kilometre away drove 50 people to the emergency room, 12 of them already dead.