Sudan, July 16 -- Nestled in the Jebel Marra mountains of Sudan's Darfur region lies the village of Sortoni, a once-thriving humanitarian hub that has been largely abandoned. Its residents say they have been ignored by the current emergency response to the war. As the last international NGO still working there, Doctors Without Borders/Medecins Sans Frontieres (MSF) is struggling to fill the gaps left behind in recent years.

The humanitarian response across Darfur has been called a failure. In Sortoni, this failure is even more striking because of how displaced people have been abandoned.

In 2016, as violence escalated across the Darfur region, thousands fled to Sortoni. The village, which was emptied during the 2003 war, became a camp for...