Authorities in Tonj State on Wednesday launched a "Back to School" campaign aimed at encouraging children to join both primary and secondary schools.
The state acting Minister of Education Deng Yuac told Radio Tamazuj that more than 90,000 students are enrolled in schools across the state with many others not yet enrolled in schools.
Yuac said they still face challenges with the enrolment of girls because many families prefer to marry their daughters off than to give them an education.
He added that another challenge is that students are studying under trees due to lack of education infrastructure.