At least four people have been killed during protests in Cameroon's economic capital of Douala, authorities say, ahead of the official announcement of results in a highly-contested presidential election. The regional governor, Samuel Dieudonné Diboua, said police posts had come under attack and security forces had defended themselves.

Paul Biya, the world's oldest head of state, claims victory in a disputed election, sparking unrest across the country already grappling with violence, corruption, and political tension.

Clashes between opposition supporters and security forces broke out after President Paul Biya, 92, won reelection.

As President Paul Biya extends his four-decade rule, opposition leader Issa Tchiroma Bakary faces shrinking choices in a system seemingly designed never to change.

Cameroon - Algeria: which channels will broadcast the match live?Cameroon - Algeria: on which channels and at what time to watch the match live?The return leg between Cameroon and Algeria, scheduled

Cameroon's government on Tuesday acknowledged that people died during protests against the disputed re-election of 92-year-old President Paul Biya, the world's oldest head of state, but blamed the opposition leader for the deaths.

Cameroon's opposition leader Issa Tchiroma Bakary, who has declared himself the winner of the 12 October elections, has told the BBC that he will not accept a stolen vote, with the results due to be announced on Monday. He says his team has compiled the overall picture based on results from individual polling stations, so there is no doubt.