Nigerian President Muhammadu Buhari.
Former vice President Atiku Abubakar polled over 1000 votes, thereby beating other aspirants to clinch the ticket to be the party's flag bearer in next year's presidential election.
The National Chairman of the Peoples Democratic Party, Uche Secondus, has said that the party will soon overthrow the All Progressive Congress (APC) to become the ruling party.
Senate President Bukola Saraki's '#GrowNigeria' movement has suffered a great setback as he didn't get the People's Democratic Party (PDP) presidential ticket.
"Before the PDP primaries, Atiku came to us in Afenifere and promised us that he was going to restructure the country, and we have already said that anybody who wants to restructure with all seriousness, such a person will be our candidate".
Speaking at the PDP Convention, Saraki described the primary election as free and fair, while commending the National working committee of a peaceful exercise.
Port Harcourt streets were festooned with conference banners, while police said thousands of officers were being deployed to the event.
Abubakar comes from the Muslim-majority north, and his nomination follows an unwritten rule in Nigeria that the presidency should alternate every two terms between a candidate from the north and south.
"Our warning to political thugs and other hoodlums is that they should stay away from the venue and even the entire state", state police spokesman Nnamdi Omoni told AFP.
He described President Muhammadu Buhari as clueless, adding that the PDP can not afford to fail at the general election.
Voters in the former British colony will elect governors and lawmakers as well as the president in elections set for February and March next year.