Ocha said the ongoing flood response by its aid partners was being hampered by renewed violence, insecurity and inaccessibility due to impassable roads.

Damaged infrastructure such as broken bridges and flooded airstrips have worsened the situation, along with a lack of funds.

An alert has been raised amid media reports that Uganda may open dams upstream on the White Nile river to relieve pressure there. If this water is released it is likely to worsen the situation in South Sudan, Ocha added.

The Relief and Rehabilitation Commission, a government humanitarian agency, has deployed assessment teams to flood-affected areas across the country to gather more information about the disaster caused by flooding