President Muhammadu Buhari addressed crowds of supporters in his home state of Katsina, while his main challenger, Atiku Abubakar, held his last rally in his native Adamawa. (Reuters)
                                    
                                    Nigeria’s presidential candidates  wrapped up their election campaigns on Thursday, making a final pitch to  voters before Africa’s most populous country heads to the polls.
President Muhammadu Buhari addressed crowds of supporters in his home  state of Katsina in the northwest, while his main challenger, Atiku  Abubakar, held his last rally in his native Adamawa, in the northeast.
Buhari, 76, is seeking a second, four-year term of office on Saturday  but is facing a strong challenge from Abubakar, 72, who has campaigned  largely against the president’s record in office.
There has been little or no reliable opinion polling but observers expect a close race, with results expected from early next week.
Some voters said they were faced with a stark choice between two  ageing candidates of the political establishment who were becoming  ill-suited to an increasingly young electorate.
Just over half (51%) of the 84-million registered voters are aged 18 to 35.
“It’s about time these old people go,” said Modibbo Sadiq, a  23-year-old university graduate, in the Adamawa state capital, Yola.
“The same people who come out for Buhari are the same who come for Atiku,” he told AFP.
Video messages
In what he called a  “state-of-the-nation address”, Abubakar said Buhari had failed to  address insecurity, led a one-sided anti-corruption campaign and  weakened the economy.
“Nigeria cannot survive another  four years of this misdirection and maladministration,” he said,  declaring that Buhari’s re-election would spell “disaster” for Nigeria.
Despite his age, Abubakar, a former vice-president and businessman  representing the Peoples Democratic Party, has tried to appeal to  younger voters.
Part of his campaign strategy has been to publish his manifesto entirely in emojis.
Former military man Buhari meanwhile issued a video message in which he conceded his time in office “has not been an easy journey”.
But he maintained the government had made “great progress”.
“Some of these achievements are visible for everyone to see. Some are  still in the works,” he said, asking for support “to consolidate” the  progress so far.
Port Harcourt clashes
Buhari, Abubakar and some 70  other presidential candidates on Wednesday signed a “peace accord” and  promised to accept the result.
But on Thursday, APC supporters in the southern oil city of Port  Harcourt clashed with police as they tried to storm the local  Independent National Electoral Commission (INEC) office.
Police fired teargas and the crowd dispersed, an AFP correspondent said.
The protest follows a Supreme Court ruling that upheld a ban on the  APC fielding candidates in Saturday’s parliamentary elections or the  vote for a new governor on March 2.
In-fighting in the local party saw two separate primaries held to  choose candidates and competing court cases to determine the legitimacy  of one or the other.
The apex court said neither was valid while INEC says the deadline has passed for the submission of candidates.
Rivers state, of which Port Harcourt is the capital, has long been a  flashpoint for political violence: in 2015, there were APC protests at  the election results and claims of rigging.
On a national level, there have been warning that both main parties  could try to rig by buying biometric cards needed by voters to cast  their ballot.
In the northern city of Kano, police said two men were arrested in  possession of 14 bags of specimen ballot papers, which they said they  were taking to neighbouring Jigawa state.
In the southeastern state of Abia, meanwhile, INEC officials brushed  off concerns about the effect of a fire at one of its offices that  destroyed 4,965 voter card readers.
The blaze was the third in 12 days. The machines are used to verify  biometric details of those on the electoral register to enable them to  vote.
Boko Haram
The threat of attack from Boko  Haram Islamists loomed large over the last elections in 2015 and fears  persist that the jihadists could again attempt to disrupt the vote.
On Tuesday, four people were killed in a Boko Haram ambush on a  convoy of vehicles carrying the outgoing governor of Borno state, Kashim  Shettima, as he headed to campaign meetings.
Shettima called the attack a publicity stunt “to attract local and global media attention”.
Concerns meanwhile have been expressed about the ability to vote of  some of the 1.8-million people made homeless by the conflict.
Ten polling stations have been set  up for some 400 000 internally displaced people (IDPs) in Borno while  three sites will be open for “IDP voting” in neighbouring Adamawa, INEC  said.
© Agence France-Presse