South Sudan's Fourth Vice-President Rebecca Nyandeng, who is the widow of the country's liberation leader John Garang, has tested positive positive for coronavirus, her office announced on Thursday.

It said that she had experienced "mild flu-like symptoms" and would stay in isolation for two weeks while being closely monitored.

"Although she is in good spirits, all necessary precautions are being taken to protect her health and that of the people around her," the statement noted.

South Sudan has 9,809 confirmed cases of Covid-19 and 106 deaths, according to the country's health ministry.