There were also no signs of tension in Kenyatta's ethnic strongholds, while supporters of opposition leader Raila Odinga celebrated peacefully in the streets in areas that had voted for him. "Majority actually belong to jail and therefore we are going to ask for their prosecution", Mr. Odinga said.
People will be watching for the reaction of former US Secretary of State John Kerry, who was the head of the mission for US NGO The Carter Centre, whose positive assessment of the election was used in court.
The lawyer representing the elections body, Paul Muite, said the election regulations did not specifically have strict requirements for the security features on the result declaration forms.
"For the first time we have got justice".
Worldwide observers had said they saw no sign of manipulation of voting and tallying at polling stations.
Kenya's treasury says the government allocated $483 million for the election with $415 million directed to the electoral commission, known as the IEBC.
The decision comes after the court granted opposition leader Raila Odinga and his coalition, National Super Alliance (NASA), access to the electoral commission's electronic server to verify the results. August's elections, that he lost to President Uhuru Kenyatta, were widely expected to be his last shot.
The election sparked days of sporadic protests, in which at least 28 people were killed.
The court ruled that the election was not conducted in accordance with the constitution and promised details in its full ruling within 21 days.
"We are ready for elections but we don't have confidence in the IEBC", said Odinga.
He said the decision of the court, which annuls the results of that country's August 8 presidential polls, serves as a shining example to other African countries. In Nairobi's sprawling Kibera slum, where six had died in clashes following the election, residents poured out of their homes and danced holding Odinga posters. "Kenya just had a hard and controversial election, and this decision pushes it right back into another electoral campaign, which will start nearly immediately". Kenyatta's father, Jomo Kenyatta, was the nation's founding president who had a long-running rivalry with Oginga Odinga, who failed like his son in efforts to secure the top job.
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