The World Health Organization warned on Thursday that Sudan’s cholera outbreak could worsen as the ongoing war and the onset of the rainy season threatens to exacerbate the humanitarian crisis.

It has claimed more than 100 lives so far and infected ​more than 1,300 others across several states, including Darfur and Kordofan where access remains severely constrained.

The United Nations body said that the true number of fatalities is likely much higher adding that aid agencies are concerned it could spread among displaced people in areas of North Kordofan.

In addition, the WHO says the case fatality rate in the current outbreak is extremely high at nearly 14 per cent.

More than three years of war between Sudan's army and the paramilitary Rapid Support Forces has decimated the country's healthcare system.