He said Nigeria has now been "firmly established" as a democracy as he took over from his predecessor and fellow party member Muhammadu Buhari.

"This handover symbolises our trust in God, our enduring faith in representative government and our belief in our ability to reshape this nation into a society it was always meant to be," President Tinubu said.

He also paid tribute to Mr Buhari and said that the electoral battle was fiercely fought and fairly won and represented the will of Nigeria.

However, the main opposition candidates are challenging his victory in court.