Despite boycott and separatists violence, President Paul Biya –– one of world's oldest and longest-serving leaders, who has held a tight grip on power for 37 of his 86 years – is billed to win.
The legislature and local council elections should have been held in 2017 but were twice postponed.
The recent sentencing of separatists is likely to fuel more anger and resentment among the Anglophone population and alienate them from the Francophone-dominated government, but the dialogue can reverse hard feelings.
Autocratic leaders in Africa are increasingly relying on internet blackouts to silence young people who use social media to mobilise against post-colonial political structures across the continent.
Biya's re-election comes amid claims from the opposition of electoral fraud that included ballot stuffing and voter intimidation.
Maurice Kamto declares victory in presidential elections, saying he had "achieved his goal" in Sunday's vote and calls on President Paul Biya to hand over power peacefully.
The probe was launched after a video circulating on social media shows security forces shooting at least a dozen unarmed people in the far north of the country.
The donation was made to the central African country in an effort boost the army's "peacekeeping and security operations" at a time when Cameroon faces armed challenges in the north, northwest and southwest regions.
More than 200,000 people have fled their homes in the volatile western regions since late last year as a predominantly French-speaking dominated Cameroon government cracks down on restive English speaking regions
Authorities expect more to enter Nigeria as Cameroon's military crackdown on protesters in the English speaking parts of the country, who are increasingly calling for a breakaway "Ambazonia" state.
With as many as 100 deaths being reported in Cameroon's English-speaking provinces, the tensions, which have their origins in World War I, are mounting in the equatorial African country.
Protests came as a months-old movement against perceived marginalisation by the Francophone-dominated government picked up.
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