Eye witnesses police have fired on protesters, as Kenya votes, in the second presidential elections since August
Among the requirements to be a candidate includes having a post-secondary school qualification and having no conviction of an election offence during the preceding five years.
Kenya is lurching deeper into a political crisis as a court ruling and parliamentary vote appear to ease Uhuru Kenyatta's path to a second term as president.
Kenya's election commission has set October 17 as the date for a new vote ordered by the Supreme Court when it annulled an August poll won by President Uhuru Kenyatta.
Kenyan President Uhuru Kenyatta says he disagrees with an historic Supreme Court decision to annul the result of last month's presidential election, citing irregularities.
Kenya must hold fresh presidential elections after Supreme Court ruled irregularities and illegalities harmed poll
Leader of the opposition claims last week's vote was rigged and will present evidence in the Supreme Court.
President Uhuru Kenyatta was declared winner with 8,203,290 votes (54.3%), beating main opposition leader Raila Odinga who garnered 6,762,224 votes (44.7%).
Kenya vote counting underway after presidential election
Opinion polls have put incumbent Uhuru Kenyatta neck and neck with his arch-rival Raila Odinga
Campaigning ends as Kenyans prepare for hotly contested election - Fears of violence trigger exodus of capital