A group of South Sudanese lawyers filed a case to the country's top court on Monday challenging the president's postponement of elections and extension of the transitional government's term for two years.

South Sudan has battled flooding, hunger and violence, while its leaders have appeared reluctant to risk going to the polls and are accused of massive corruption. Earlier this month, the U.N.'s humanitarian agency warned that more than 700,000 people had been affected by flooding, with aid failing to meet many in need.

South Sudan postponed elections that were due in December for two years, extending the mandate of the nation’s transition government.

International guarantors of South Sudan's peace process said the transitional government's postponement of elections due in December was disappointing and showed its failure to implement a 2018 peace plan.

President Cyril Ramaphosa says South Africa will continue to support South Sudan following a decision to extend the transitional period agreed in a peace deal.