Kenya's President Uhuru Kenyatta casts his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta casts his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
A wellwisher takes a selfie with Kenya's President Uhuru Kenyatta, center-left, after Kenyatta cast his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
A wellwisher takes a selfie with Kenya's President Uhuru Kenyatta, center-left, after Kenyatta cast his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta waves to gathered wellwishers and voters, after casting his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta waves to gathered wellwishers and voters, after casting his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta, center, jokes with the crowd after helping up a wellwisher who got pushed over, after casting his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta, center, jokes with the crowd after helping up a wellwisher who got pushed over, after casting his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
An elderly Kenyan woman takes a rest after casting her vote, while a Kenyan policeman provides secrurity, just after dawn in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding its second presidential election since August despite high tension and the main opposition leader's call for his followers to boycott. (AP Photo/Ben Curtis)
An elderly Kenyan woman takes a rest after casting her vote, while a Kenyan policeman provides secrurity, just after dawn in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding its second presidential election since August despite high tension and the main opposition leader's call for his followers to boycott. (AP Photo/Ben Curtis)
Police prepare to use teargas against protesters in the Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Police prepare to use teargas against protesters in the Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Opposition supporters clash with police in Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Opposition supporters clash with police in Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Opposition supporters run during clashes with police in Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Opposition supporters run during clashes with police in Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Opposition supporters clash with police in Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Opposition supporters clash with police in Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Opposition supporters throw rocks during clashes with police in Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Opposition supporters throw rocks during clashes with police in Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Police remove a barricade erected by protesters in the Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Police remove a barricade erected by protesters in the Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Tents used for polling stations are erected in the Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Tents used for polling stations are erected in the Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Men stand in front of a polling station in the Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
Men stand in front of a polling station in the Kibera slum in Nairobi, Kenya, Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election Thursday, despite a boycott by the main opposition party and rising political tensions in the East African country.(AP Photo/Darko Bandic)
A Kenyan man casts his vote just after dawn in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
A Kenyan man casts his vote just after dawn in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
A Kenyan woman prepares to cast her vote by gas lamp, just after dawn in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
A Kenyan woman prepares to cast her vote by gas lamp, just after dawn in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenyans queue to vote just after dawn in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenyans queue to vote just after dawn in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta casts his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta casts his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta casts his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta casts his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta claps his hands after casting his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Kenya's President Uhuru Kenyatta claps his hands after casting his vote in his hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Esther Wanjiru Njoroge wears braids and earrings in the colors of the Kenyan flag, as she waits to cast her vote in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)
Esther Wanjiru Njoroge wears braids and earrings in the colors of the Kenyan flag, as she waits to cast her vote in President Uhuru Kenyatta's hometown of Gatundu, Kenya Thursday, Oct. 26, 2017. Kenya is holding the rerun of its disputed presidential election, despite a boycott by the main opposition party and rising political tensions in the East African country. (AP Photo/Ben Curtis)

The Latest on Kenya's repeat elections. 

12:00 p.m.

Kenyan President Uhuru Kenyatta has voted in his hometown of Gatundu, saying that 90 percent of the country is calm and that he will work to unify the country if he is re-elected.

Kenyatta on Thursday said outside a polling station that Kenya must remove ethnic loyalties from its politics in order to succeed.

"What we have is a problem of tribalism, and tribalism is an issue that we must continue to deal with and fight with as we continue to develop our country," Kenyatta said. "We cannot achieve our goals if we continue to embark on tribalistic politics."

Many observers say Kenya's ethnic-based politics overshadow the promise of its democracy. Kenyatta is from the Kikuyu group, while opposition leader Raila Odinga, who is boycotting Thursday's election, is a Luo.

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11:40 a.m.

Opposition leader Raila Odinga says the opposition will press for what it deems credible elections after boycotting Thursday's repeat presidential election because of what it says is a lack of adequate reforms to the electoral commission.

Odinga's challenge to the August elections, which were won by President Uhuru Kenyatta, led the Supreme Court to annul those results, citing illegalities, and order a repeat election.

Now Odinga is urging a boycott of Thursday's elections. Odinga said Wednesday that the opposition coalition, National Super Alliance, will become a resistance movement.

A statement from Odinga Thursday says his movement will constitute a "People's Assembly to guide the country to a fresh free and fair presidential election" as part of its peaceful resistance.

Odinga said the resistance will also include boycotting goods and services by those who have supported Kenyatta's "lawless grab of the presidency." He says Kenyatta's push for an election, despite concerns overs its credibility even from the electoral commission's chief, is due to the fact that he had alienated many voters and could only win an election unfairly.

Kenyatta's is the leading candidate in Thursday's election. Six other candidates on the ballot got less than one per cent in the nullified election in August.

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10:55 a.m.

Kenyan police on Thursday fired tear gas at stone-throwing protesters in some opposition areas after the start of Kenya's second presidential election since August, reflecting bitter divisions in a country whose main opposition leader urged his followers to boycott the vote.

Violence erupted in Nairobi's Kibera slum and Kisumu, a major city in western Kenya where protesters set fires and blocked roads, and many polling stations didn't open because of security concerns. One Kisumu primary school that saw huge lines of voters when it served as a polling station in Kenya's Aug. 8 election was closed this time around, its gates locked.

Voting, meanwhile, proceeded in areas where President Uhuru Kenyatta has support, but fewer voters were turning out in comparison to the August election that the Supreme Court nullified because it found illegalities and irregularities in the election process.

Voters lined up before dawn at a polling station in Kenyatta's hometown of Gatundu and electoral workers prepared ballot papers by flashlight after heavy rains knocked out power to the site.

Kenyatta, who was declared the winner in August with 54 percent of the vote, said in a televised address Wednesday that security forces would be deployed nationwide to ensure order, and he urged Kenyans to vote while respecting the rights of those who don't.

Opposition leader Raila Odinga, who got nearly 45 percent in August, said the new vote won't be credible because of a lack of electoral reform and accused Kenyatta of moving a country known for relative stability and openness toward authoritarian rule.

-AP