The presidents of South Africa and Nigeria have arrived in Ivory Coast in another effort to resolve a standoff over the selection of a new prime minister.

Thabo Mbeki and Olusegun Obasanjo plan to hold talks with President Laurent Gbagbo, opposition leaders and rebels who control the northern half of Ivory Coast.

The parties have been unable to agree on a new prime minister who would run a caretaker government until elections scheduled for October 2006.

Mr. Gbagbo canceled elections scheduled for October of this year and vowed to remain in office another 12 months, sparking anger among rebels and opposition leaders.

The Nigerian and South African leaders traveled Sunday from Mali, where they attended the France-Africa summit. The president of Niger, Mamadou Tandja, is scheduled to join them for the talks in Abidjan.

Some information for this report provided by AP.