Sudan reported four confirmed cases of cholera in Blue Nile Tuesday and said three people had also died of acute diarrhoea in the state.
Health Minister Akram al-Toum has asked the World Health Organization to send supplies of cholera vaccine immediately, the ministry said.
Ministry and WHO officials have been sent to the affected area.
“There are 37 cases of acute diarrhoea in Blue Nile… There have been three deaths,” the ministry said in a statement.
Dozens of people died from acute diarrhoea in Sudan in 2016 after thousands of cases were reported nationwide.
Blue Nile state, which has a large ethnic minority population, has been the focus of a rebellion by the Sudan People’s Liberation Army-North since 2011.
The army declared a ceasefire after the overthrow of veteran President Omar al-Bashir earlier this year.