Kenya's opposition leader Raila Odinga urged his supporters to boycott Thursday's presidential re-run election, claiming it would not be free and fair.

"What we do tomorrow: one, do not participate in any way in the sham election, two, convince your friends, neighbours and everyone else not to participate," he told a crowd in Nairobi Wednesday. He called on them to "hold vigils and prayers away from polling stations, or just stay at home."