South Africa's government says President Jacob Zuma has travelled to East Africa for talks on the South Sudan peace process.

Spokesman Mac Maharaj said Zuma travelled to Tanzania, where he met President Jakaya Kikwete on Monday. He then travelled to Uganda to meet President Yoweri Museveni.

Zuma is meeting with the two heads of state as part of ongoing regional talks to end the crisis in South Sudan. Zuma's trip follows South Sudanese President Salva Kiir's visit to South Africa earlier this month.

Tens of thousands of people have died and 1.9 million more have been displaced by warfare in the young nation, according to the United Nations. Fighting broke out in South Sudan about a year ago, pitting Kiir's supporters against former Vice President Reik Machar's followers.