Mr. Shadad, 27, works with more than 60 artists across Sudan, and was planning a solo show in Khartoum for Waleed Mohamed, a 23-year-old painter. Mr. Shadad had also just finished curating and shipping artworks for an exhibition scheduled to travel abroad titled “Disturbance in The Nile.” The show, which starts in late June, will tour Lisbon, Madrid and Paris and feature Sudanese artists from various generations.

But since the fighting broke out, Mr. Shadad has focused solely on ensuring the safety of the artists and their artwork.

Hundreds of paintings and framed artworks are stuck in the Downtown Gallery located in Khartoum 2. The conflict has also drained the savings of many artists and denied them a regular income, which largely stemmed from sales to foreign nationals and embassy officials who have now been evacuated.

To help artists and their families, Mr. Shadad, along with Sudanese curators like Ms. Satti, started a crowdfunding campaign this month. They are also mulling over how to transport artists’ works to safety once relative calm takes hold in Khartoum. Despite a seven-day cease-fire scheduled to expire on Monday, Mr. Shadad said he had been told about robberies and harassment of civilians who venture back to the area near his gallery.

“The hub of the art scene in Sudan is under a serious attack,” Mr. Shadad, crying, said in a phone interview from Cairo. “It is extremely emotional thinking that the hard work that we have done will just be lost.”