(Bloomberg) -- Cameroon President Paul Biya easily won elections this month to extend his 36-year rule by another seven years.

Biya obtained 71 percent of the vote in the one-round Oct. 7 election, the head of the Constitutional Council, Clement Atangana, said Monday. Security forces and police deployed in large numbers in all major cities to prevent protests as Atangana announced the result in the capital, Yaounde.

The outcome means that Biya, who’s already Africa’s second-longest serving head of state, will continue to rule the central African nation until at least the age of 92.

The election was overshadowed by a bloody separatist insurgency in the nation’s two Anglophone regions that has left more than 400 civilians dead since 2016. Voters in the Northwest and Southwest regions largely stayed indoors and some of those who did cast their ballot said they received death threats from insurgents.

Opposition candidate Maurice Kamto came in second with 14 percent of ballots cast, with the remainder of votes shared by seven other candidates, Atangana said. Kamto alleges that the poll was fraudulent and filed a petition to get it annulled, while one of the candidates on the results sheet withdrew a day before voting to back Kamto. The Constitutional Council rejected Kamto’s and 17 other petitions against the vote.

Cameroon’s opposition has never been able to effectively unite and unseat Biya, who assumed the presidency in 1982 after holding the post of prime minister for seven years. His closest challenge came in the country’s first democratic elections a decade later when the Anglophone politician John Fru Ndi won more than a third of the vote. Since then, Biya has always secured at least 70 percent of the vote.

Opposition candidates allege that there’s rampant bias in the electoral commission, which is mainly staffed with ruling party representatives, and the Constitutional Council, whose members Biya appointed.

To contact the reporter on this story: Pius Lukong in Yaounde at plukong@bloomberg.net

To contact the editors responsible for this story: Karl Maier at kmaier2@bloomberg.net, Pauline Bax

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