Story highlights Kenya President congratulates the incumbent, says the Ugandan people have "spoken very clearly"

A U.S. official points to opposition leader's arrest, pre-checked ballots; says Ugandans "deserved better"

President Yoweri Museveni looks to extend his 30 years in office; opposition leader said he will challenge the results

(CNN) Ugandan President Yoweri Museveni extended his 30-year grip on power Saturday after the election commission declared him the winner despite an outcry from the opposition.

Preliminary figures showed the incumbent with 62% compared to 34% for his closest competitor, opposition leader Kizza Besigye. But Besigye's party, the Forum for Democratic Change, rejected the results and demanded an independent audit of the elections.

Besigye is under house arrest, with no one is allowed in or out to see him.

Elections officials are scheduled to announce the final results sometime later this weekend.

The country had a voter turnout of 63%, according to the election commission.

Read More