On Monday, President Bola Tinubu took the oath of office to become the 16th leader of Nigeria.
The swearing-in ceremony for Tinubu and his vice, Kashim Shettima, took place in Abuja's Eagles Square.
Following the occasion, Tinubu has received many congratulations from Nigerians and foreigners for realising his long-held aim of becoming president.
Nevertheless, Atiku Abubakar of the Peoples Democratic Party (PDP) and Peter Obi of the Labour Party (LP) have not congratulated Tinubu, according to Bendelnews.
Nearly 24 hours after the event, our correspondent looked through theory of social media profiles and found no messages congratulating Tinubu.
In a hotly contested presidential election in February, Tinubu had prevailed against Atiku and Obi.
Atiku and Obi, however, are arguing against the election results in court.
Both candidates are announcing that they were victorious.
Due to the fact that he was not invited, Obi had previously stated he would not attend the inauguration.
@delanoi, a user on social media, stated: "This is detrimental for Nigeria's democracy. Obi and Atiku ought to have given Tinubu their congratulations on being sworn in. The tribunal is not stopped by it.
@jimmajg: Atiku and Obi, in my opinion, ought to have congratulated Tinubu while continuing to advocate for their mandate before the tribunal.