Voters in Ghana are heading to the polls on Monday to elect the country’s next president, in what is expected to be a tight race between incumbent Nana Akufo-Addo and his predecessor, John Mahama.

The two longtime rivals, who are competing in the election for the third straight time as they seek a second and final term, are widely seen as the two frontrunners in a crowded field of 12 candidates.

The President of Ghana is elected using the two-round system, whilst the 275 members of Parliament are elected in single-member constituencies using first-past-the-post voting.

Eligible voters must be Ghanaian citizens who are at least 18 years old, although those declared insane are disenfranchised.

Parliamentary candidates must be Ghanaian citizens at least 18 years old, and either be resident in their constituency or have lived there for at least five of the ten years prior to the election.