Four people were killed in Douala, Cameroon, after clashes erupted between security forces and opposition supporters protesting alleged election fraud ahead of the official results announcement

The threat against Issa Tchiroma Bakary comes a day after he was declared the runner-up in disputed presidential polls.

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.

Fresh violence has engulfed several cities in Cameroon barely 24 hours after the Constitutional Council declared 93-year-old President Paul Biya the winner of the country’s disputed presidential election.

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

DOUALA (Reuters) -Cameroonian authorities have detained about 30 politicians and activists linked to opposition presidential candidate Issa Tchiroma, his campaign said Sunday, heightening tensions ahead of Monday's announcement of results of an October 12 election.