On Tuesday, the Red Cross and the World Health Organization (WHO) urged Sudan's warring sides to ensure humanitarian access for those in need as the death toll in the conflict approached 200.
Explosions rattled Khartoum on the fourth day of combat, despite rising international appeals to cease the conflict.
Tedros Adhanom Ghebreyesus, WHO chief, told a press conference said that All parties involved in the conflict must ensure unrestricted and safe access to health facilities for those injured and everyone that needs medical care.
The United Nations has no means of getting into or out of Sudan.
According to Alessandra Vellucci, the UN has between 800 international and 3,200 national employees in Sudan.
She went on to say that they were concerned about security and that they couldn't work usually.
At the start of this year, nearly one-third of Sudan's population, or nearly 16 million people, need humanitarian assistance.
According to Farid Aiywar, Sudan's head of delegation for the Red Crescent Societies and International Federation of Red Cross, the organization has hundreds of volunteers ready, able, and trained to provide humanitarian assistance.
He added that, unfortunately, they cannot move due to the current situation, they cannot move.
Aiywar has urged all parties to enable humanitarian relief corridors to function.
Civilians remain indoors, but power and water have been cut off, and food supplies are running low.
Tedros stated that the supplies supplied to hospitals before the outbreak of violence were now depleted.
He said Khartoum hospitals receiving injured civilians reported staff and crucial medical supplies shortages, fuel shortages, and electricity and water outages.
He went on to say that there have been reports of some health institutions being plundered and others being repurposed for military purposes, which is concerning.
According to Aiywar, some hospitals have already closed or are on the verge of closing due to assaults and a lack of healthcare workers.
He urged all parties to heed demands for a humanitarian truce, to put down their weapons, and to strive toward a peaceful resolution.