Peter Obi says he will prove he won Nigeria election

Labour Party presidential candidate Peter Obi chats with reporters after casting his vote during Nigeria's presidential election in his hometown of Agulu, Anambra state, Nigeria [Sam-Eze Chidera/Al Jazeera]

Abuja, Nigeria – Labour Party leader Peter Obi, the third-placed candidate in the Nigerian presidential election, has promised to challenge the result in court.

Bola Ahmed Tinubu of the governing All Progressives Congress (APC) was declared winner and president-elect on Wednesday, securing 37 percent of the vote. The main opposition People’s Democratic Party candidate Atiku Abubakar received 29 percent of the vote, while Obi garnered 25 percent of the vote, according to the Independent National Electoral Commission (INEC).