A UN estimate puts the latest number of people to have been displaced by the crisis in South Sudan at almost 400,000.
43,000 of which are said to have fled to neighboring countries as refugees.
The aid agency said people are mainly moving to Central and Eastern Equatoria, Jonglei, and Unity states.
More than 84,000 people have been displaced to Mingkaman and surrounding areas in Awerial County, Lakes State.
However, the UN says around half the people internally displaced have received some aid.