Vice-President Yemi Osinbajo has arrived at the Eagles Square, venue for the inauguration ceremony.
Prof. Osinbajo arrived in the company of his wife, Dolapo.
His arrival at the Eagles Square was recognised by the guards of honour.
President Muhammadu Buhari is still being expected at the venue.
Senate President, Bukola Saraki; Speaker of House of Representatives, Yakubu Dogara; and other top government officials are at the venue.
Former Head of State, Yakubu Gowon, also attended the inauguration.