Kenya's opposition leader Raila Odinga, has dismissed plans to hold repeat polling in parts of western Kenya and urged his supporters to boycott the exercise, privately-owned Citizen TV website reports. 

The electoral body postponed voting in four western counties: Migori, Siaya, Kisumu and Homa Bay, after most polling stations failed to open because of opposition protests.

The opposition leader told Citizen TV that Thursday's repeat presidential election was a “sham”.

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