Cameroon's opposition leader has vowed to resist until the "final victory" over President Paul Biya, calling on his supporters to stay mobilised as a civil society group denounced deaths and arrests in protests in multiple cities.

Cameroon Interior Minister Paul Atanga Nji say opposition leader Issa Tchiroma Bakary go face legal action on top accuse say e ginger "violent post-election demonstrations".

Four protesters were shot dead during clashes with security forces in Douala, the economic capital, on Sunday, while more than 100 were arrested as demonstrators took to the streets to demand credible...