South Sudan's minister of East African Affairs in the current unity government, John Luk Jok has died, a government spokesperson confirmed on Tuesday.
Michael Makuei Lueth, minister of information and broadcasting, described the deceased as a liberator and scholar who helped write the country's Constitution in 2011.
"It was this Tuesday morning when I received a telephone call and informed that brother John Luk Jok, has passed on. So it is true that it has happened," Makuei told Xinhua in Juba.
He said there was no official confirmation of the cause of the death.
"We have lost a great man who contributed a lot in a liberation struggle and after liberation. He had ever been a servant of people, and with his death, we have lost a great man," said Makuei.