Paul Biya, 92, said to have won 53.66% of vote after volatile two weeks since election when opponent claimed victory

Paul Biya, the world’s oldest serving head of state, has been declared the winner of Cameroon’s election, granting him an eighth term that could keep him in office until he is nearly 100.

The country’s constitutional council said Biya had won 53.66% of the vote, while his former ally turned challenger, Issa Tchiroma Bakary, got 35.19%.

Issa Tchiroma Bakary calls on 92-year-old president to accept end of reign, although results have yet to be released

The Cameroonian opposition leader Issa Tchiroma Bakary has declared himself the winner of the 12 October presidential election and called on the incumbent, Paul Biya, to accept the end of his 43-year rule.

“Our victory is clear, it must be respected,” Tchiroma said in a video statement on Facebook with the national flag in the background, before directly addressing 92-year-old Biya: “We call on the regime in power to show greatness and to honour the truth of the ballot box with a long-awaited gesture: that phone call of congratulations, which will demonstrate the political maturity of our nation and the future strength of our democracy.”