Partial results on Tuesday had shown an early lead for Kenyatta, though his percentage will drop when the rejected votes are counted in the total.

NPR: Kenya: Ballot Count Begins; Charge Levied At UK

But Kenyatta's percentage is likely to drop after the decision on rejected votes.

NPR: Kenya: Runoff Seems Likely After Ballot Decision

But the talks collapsed on Sunday after the rebels had rejected an ultimatum from the government that they drop their demand for independence.

ECONOMIST: War on the separatists