Bola Tinubu's Nigeria election win: The rigging claims of Peter Obi and Atiku Abubakar

Bola Ahmed Tinubu has been declared the winner of Nigeria's fiercely contested presidential election but many, including opposition parties, have claimed the poll was rigged and a sham.

They have called for the election to be cancelled, alleging breaches of the Electoral Act and possible collusion by the Independent National Electoral Commission (Inec) to doctor the result in Mr Tinubu's favour.

The allegations have been denied by Inec and Mr Tinubu's party, the ruling All Progressives Congress (APC).

As for the opposition parties, they have so far not offered any concrete proof to back up their allegations.

But the Labour Party, whose presidential candidate Peter Obi came third, has said it will go to court to overturn Mr Tinubu's victory. It is yet to be seen what evidence it presents.