The Czech Republic headed to the polls on Friday to vote in a presidential election that pits current pro-Russian President Milos Zeman against eight other candidates.

Polls showed 73-year-old ex-communist Zeman was leading in the nine-candidate race, ahead of his most likely challenger, Jiri Drahos, a pro-European independent candidate who is a physical chemist and the former head of the Czech Academy of Sciences.

Read more: Czech presidential race boils down to Milos Zeman or not

Zeman's campaign has centered on anti-immigration and a referendum on the Czech Republic's withdrawal from the European Union, despite his own support of the country's membership in the bloc.

His rhetoric echoes other populist-minded eastern EU leaders – such as in Hungary and Poland – that are in disagreement with Brussels over mandatory refugee quotas and various rules they see as attempts to limit national sovereignty.

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He also has harsh anti-Muslim views, having once called the 2015 migrant crisis "an organized invasion" of Europe and insisted Muslims were "impossible to integrate."

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However, the country of 10.6 million people has received only 12 migrants under the EU quota system.

Pollsters do not expect Zeman to win more the more than 50 percent of votes needed to secure a second term outright, meaning a run-off might occur.

Zeman has the support of embattled billionaire Prime Minister Andrej Babis, who on Thursday said he saw the incumbent as "one of the most remarkable personalities" since the fall of communism in 1989.

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"He lives for politics, not from politics; he fights for our national interests," he said, adding that Zeman should "unite, not divide" Czechs.

President should bring 'good manners' to politics

Jiri Drahos is Zeman's most likely competition

Drahos, on the other hand, is a liberal centrist who has called on Prague to "play a more active role in the EU."

"The president should bring good manners to the political scene," Drahos — whom some critics accuse of being "wishy-washy" — said in a TV debate on Thursday.

"The vote shows a broader conflict; it shows how society is polarized," independent political analyst Jiri Pehe told AFP.

"It is a clash between ... the post-communist part of society represented by Zeman and the other part, say, modern, pro-Western, which simply doesn't want this president anymore," Pehe said.

Other candidates in the running include ex-gambler and songwriter Michal Horacek, former right-wing premier Mirek Topolanek and Vratislav Kulhanek, former head of Czech carmaker Skoda Auto.

Preliminary results are expected on Saturday night.

law/tj (AFP, dpa)