The dead includes a nine-year-old girl, while nearly 100 people more have been injured, Despite Mr Odinga's claims, which he has not provided evidence for, Kenya's election commission said the process for the vote won by incumbent Uhuru Kenyatta was fair.
The unrest erupted moments after Kenya's election commission announced late on Friday that Kenyatte, 55, had won a second, five-year term, despite opposition allegations that the tally was a fraud.
Odinga 's party officials have said they will neither back down nor take their grievancesto court, as they did in 2013 when Odinga also cried foul over his loss.
NASA had repeatedly complained that there were anomalies in the results that IEBC was streaming on its portal and wanted them audited before a final result could be announced. "We are all citizens of the same republic". "The impression being created on social media that we have security challenges in this country is false".
Those opposing the reelection have justified their protest, declaring that the election was rigged and opposition leader Raila Odinga was the actual victor. As with any competition, there shall always be winners, and there shall be losers.
According to Kenyan human rights watchdog, at least 26 people have been killed in the post-election violence, while oppostion leaders claim the death toll is much higher.
Following the announcement of results, hundreds of police in anti-riot gear were in the streets of the capital, Nairobi, amid fears of further protests by opposition supporters.
In a bid to unite the country after the heated campaign, Kenyatta reached out to Odinga and his supporters, saying, "We are not enemies".
While Odinga called on his supporters before the results to remain calm, he also said that "people want to see justice", the BBC reports.
The election was Odinga's fourth failed shot at the presidency.
Kenyatta said Odinga should follow legal avenues to protest the election, and repeated a call for peace.
The election commission said there was a hacking attempt but it failed, and that Mr Odinga's camp had no right to declare him as the victor.
Later, Odinga visited another slum district, Mathare, where he met with the family of a 10-year-old girl, Moraa Nyarangi, who was killed when police fired at protesters.
- Defoe strengthens Euros case
- Auto hits people at Charlottesville rally - several injured
- Barcelona Transfer Rumors 2017: Liverpool Reject €100 Million Offer for Philippe Coutinho
- Mo Farah takes Mobot to new heights in emotional farewell
- WEATHER: Lots of sunshine, a little warmer
- Contrasting emotions for Wagner and De Boer
- Klitschko faces must-win bout against Fury
- Talent Not an Issue for England's New Manager
- Irish MMA megastar Conor McGregor floors former boxing champ in sparring session
- Top smartphones for gaming