Kenya's PM, who claims to be Obama's cousin, protests losing election, police respond with tear gas

NAIROBI (Reuters) - Defeated presidential contender Raila Odinga challenged his election loss in court on Saturday, alleging widespread ballot rigging in a fresh test of Kenyan democracy five years after a disputed vote triggered deadly tribal violence.

Shortly before the petition was filed, police outside the Supreme Court fired teargas to disperse a rally of around 100 Odinga backers. They were urged by the outgoing prime minister to stay calm and trust in the law to resolve his complaint.

Odinga's complaint threatens to prolong the period of uncertainty shadowing east Africa's largest economy.

Analysts say a swift, transparent resolution of the row will be critical to restoring Kenya's reputation as a stable democracy. Big Western donors worry about a nation seen as a vital ally in a regional struggle against militant Islam.

Odinga, head of the CORD coalition, refuses to accept the slim first-round election win by Uhuru Kenyatta, who has been indicted by the International Criminal Court over the explosion of bloodshed in 2007 that left more than 1,200 people dead.

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