South Africa's President Jacob Zuma has appealed to his ancestors to help him hold on to the leadership of the ruling African National Congress (ANC).

Zuma attended a ceremony at his village on Sunday, where 12 cattle were slaughtered and incense burnt as people prayed for his re-election.

His opponents are pushing for him to be ousted as ANC leader at the party's conference next month.

He beat his predecessor Thabo Mbeki in a bitterly contested election in 2007 for the leadership of the ANC.