About 817 suspected cholera cases have been recorded in three Sudanese states, including 35 deaths, local media report.
The cases were reported in Gedaref, South Kordofan and Khartoum states, privately owned al-Rakoba news website reported, citing the World Health Organization (WHO).
The UN last week said that months of conflict in Sudan had left millions of people at risk of cholera, dengue, measles, malaria and other diseases without sufficient containment capacities.
The WHO has also warned that the lives of over 9,000 kidney patients were in danger due to the limited number of dialysis centres in the country.
Sudan's hospitals have been hit hard by the conflict between the army and a paramilitary force, with many stopping operations amid fighting.
The conflict has killed over 9,000 people and displaced nearly six million others, according to the UN.