By Nduka Orjinmo
BBC News, Abuja
Nigeria's ruling enactment campaigner Bola Tinubu is starring successful the statesmanlike predetermination aft results were released successful 14 of the country's 36 states.
Mr Tinubu has won conscionable implicit 44% of the tallied votes. His main rival Atiku Abubakar has astir 33% of the vote.
Labour's Peter Obi has adjacent to 18%, having caused an upset by defeating Mr Tinubu successful the biggest city, Lagos.
On Monday, Mr Abubakar's and Mr Obi's parties walked retired of the venue wherever results are being announced.
The Peoples Democratic Party (PDP) and the Labour Party person claimed determination is simply a deficiency of transparency with the caller physics elector system.
This was the archetypal nationalist predetermination wherever an physics instrumentality had been utilized to accredit voters.
The Independent National Electoral Commission (Inec) has denied the absorption parties' complaints.
Its president Mahmood Yakubu said the announcement of results would continue.
European Union observers said the electoral body's mediocre readying and connection undermined spot successful the process.
The PDP typical astatine the predetermination centre successful the capital, Abuja, described the process arsenic fraudulent, and accused the governing All Progressives Congress (APC) of colluding with Inec. The Labour Party asked for the announcements to beryllium suspended, oregon for the predetermination to beryllium cancelled and rerun.
The APC said those dissatisfied with the results should spell to court, and that the parties should archetypal fto the process tally its course.
A campaigner needs to person the astir votes nationwide and a 4th of ballots formed successful 25 of the 36 states positive Abuja to beryllium declared the winner.
If those thresholds are not reached past determination volition a 2nd circular run-off betwixt the apical 2 candidates.
The APC and PDP person dominated Nigeria since the extremity of subject regularisation successful 1999.
Mr Obi - from the antecedently small known Labour Party - ran for the archetypal time, promising to situation the two-party system.
He has the enactment of galore young people, who marque up a 3rd of registered voters. There are 15 different candidates.
From the results announced truthful acold Mr Tinubu has won the astir votes successful six states, Mr Abubakar 5 and Mr Obi three.