Communities in Maiwut town and surrounding areas have been displaced after the recent fighting in the state, the United Nations Office for the Coordination of Humanitarian Affairs (UNOCHA) reports.
The report also says the fighting has triggered the relocation of humanitarian workers, causing suspension of the delivery of much-needed humanitarian assistance.
According to the UN, the clashes which started on 31 July to 5 August were between the Cie-Wau community and opposition forces that has caused the displacement of about 10,000 people.
At least 10 humanitarian workers have been relocated for safety reasons; while humanitarian aid workers say more than 25,000 people could be affected if fighting carries on.
Maiwut and surrounding areas is home to many internally displaced people and refugee returnees.
UNOCHA, in its report is calling for access to the affected area to allow the delivery of aid and safety of humanitarian workers.