Technical problems with the Presidential jet have prompted the delay of President Jacob Zuma's departure from Burundi.
Chief operations officer in the Presidency Lakela Kaunda says the President could not leave on Friday night when the other heads of state, who are members of African Union (AU) High Level Panel on Burundi, left Bujumbura.
It is believed that the Presidential plane Inkwazi has a fuel leak.
The President led a delegation of five African heads of state for a meeting with Burundi's President Pierre Nkurunziza and had deliberations with political party representatives, civil society and religious leaders.
More than 400 people have been killed and close to 250 000 have fled the country
The visit comes after Burundi’s President Pierre Nkurunziza told United Nations Secretary General Ban Ki-moon that he would be open to talks with opposition groups in the country.
The AU abandoned the initial decision to send a peace keeping mission to the country but instead appointed a heads of state committee to engage the government.
Burundi rejected the peace keeping mission.
Trouble started in April last year after Nkurunziza announced that he would seek a controversial third term
President Zuma was the mediator in 2000 and helped broker the Aursha peace agreement, which saw an end to a long running civil war in the country.
More than 400 people have been killed and close to 250 000 have fled the country.