The Latest: Nigeria delays presidential vote until Feb. 23

February 16, 2019 GMT

              An electoral worker take stock of ballot papers to be transporters at the offices of the Independent National Electoral Commission in Yola, Nigeria, Friday, Feb. 15, 2019.  Nigeria surged into the final day of campaigning ahead of Saturday's election, as President Muhammadu Buhari made one last pitch to stay in office while top challenger Atiku Abubakar shouted to supporters: "Oh my God! Let them go! Let them go!" (AP Photo/Sunday Alamba)

              An electoral worker take stock of ballot papers to be transporters at the offices of the Independent National Electoral Commission in Yola, Nigeria, Friday, Feb. 15, 2019.  Nigeria surged into the final day of campaigning ahead of Saturday's election, as President Muhammadu Buhari made one last pitch to stay in office while top challenger Atiku Abubakar shouted to supporters: "Oh my God! Let them go! Let them go!" (AP Photo/Sunday Alamba)

              An electoral worker take stock of ballot papers to be transporters at the offices of the Independent National Electoral Commission in Yola, Nigeria, Friday, Feb. 15, 2019.  Nigeria surged into the final day of campaigning ahead of Saturday's election, as President Muhammadu Buhari made one last pitch to stay in office while top challenger Atiku Abubakar shouted to supporters: "Oh my God! Let them go! Let them go!" (AP Photo/Sunday Alamba)
1 of 10
An electoral worker take stock of ballot papers to be transporters at the offices of the Independent National Electoral Commission in Yola, Nigeria, Friday, Feb. 15, 2019. Nigeria surged into the final day of campaigning ahead of Saturday's election, as President Muhammadu Buhari made one last pitch to stay in office while top challenger Atiku Abubakar shouted to supporters: "Oh my God! Let them go! Let them go!" (AP Photo/Sunday Alamba)
1 of 10
An electoral worker take stock of ballot papers to be transporters at the offices of the Independent National Electoral Commission in Yola, Nigeria, Friday, Feb. 15, 2019. Nigeria surged into the final day of campaigning ahead of Saturday's election, as President Muhammadu Buhari made one last pitch to stay in office while top challenger Atiku Abubakar shouted to supporters: "Oh my God! Let them go! Let them go!" (AP Photo/Sunday Alamba)

KANO, Nigeria (AP) — The Latest on Nigeria’s election (all times local):

2:50 a.m.

Nigeria’s electoral commission says the presidential election is delayed until Feb. 23 over unspecified “challenges” amid reports that voting materials have not been delivered to all parts of the country.

Commission chairman Mahmood Yakubu spoke to reporters a little over five hours before polls were supposed to open in Africa’s most populous country and largest democracy.

The commission promised more details at a 2 p.m. briefing in the capital, Abuja.

Yakubu said that “this was a difficult decision to take but necessary for successful delivery of the elections and the consolidation of our democracy.”

In 2015, Nigeria delayed the election by six weeks over insecurity.