Defeated Kenyan presidential candidate Raila Odinga has delayed filing a court challenge to last week's election results.
Odinga was expected to submit the challenge with Kenya's Supreme Court on Friday. But his Coalition for Reform and Democracy (CORD) says he will now not file the petition until Saturday - the last day to do so.
CORD officials say they are still confident of winning the challenge. They say the postponement is for strategic reasons, to prevent the petition from being "mixed up" with other election-related issues.
Odinga, the outgoing prime minister, has refused to accept the official election results, saying fraud was committed during the vote-counting.
The election commission declared Uhuru Kenyatta the winner of the election with 50.07 percent of the vote, just enough to avoid a run-off.
Local and international poll observer groups said the vote was peaceful and credible.
The vote was Kenya's first nationwide ballot since the disputed 2007 election that led to weeks of ethnic violence and more than 1,100 deaths. The turmoil six years ago also displaced 600,000 people.
The International Criminal Court has indicted Kenyatta on charges of helping to orchestrate that violence. His trial at the ICC is due to begin in July.