Nigeria's President confirmed he will seek another term in elections next year.

Nigeria's President Muhammadu Buhari confirmed on Monday he will seek another term in elections next year, ending months of speculation about his future after bouts of ill health.

The announcement by Buhari, a northern Muslim who became the first opposition candidate to defeat an incumbent at the ballot box, was widely expected although stocks on the Nigerian market fell 1.01 percent on Monday to a three-month low.

Nigeria's President said he would seek his party's presidential ticket to contest elections in February 2019 during a closed door meeting of the national executive committee of his All Progressives Congress (APC) party.

Buhari took office in May 2015 after vowing to improve security and crackdown on endemic corruption, but Africa's top oil producer fell into its first recession in 25 years in 2016, largely caused by low crude prices and militant attacks in the Niger Delta, and its recovery remains fragile.

After spending five months in Britain last year being treated for an undisclosed ailment, opposition groups in Africa's most populous nation and other critics said he was unfit for office.