This was made known in a State House Statement issued on Thursday. Signed by Mr. Femi Adesina, Presidential Adviser on Media and Publicity, the statement said President Buhari and Kerry spoke on the margins of the conference on climate change, COP22, in Marrakech, Morocco.
President Buhari said corrupt people have accumulated a vast arsenal of illicit wealth, which they are deploying against the government on various fronts.
He, however, assured that the battle would be won.
"But it is a war we are determined to win, and which we will win. People of goodwill are behind us, countries like America and many others are with us, and we will surely win," Mr President said.
President Buhari also updated Kerry on the counter-insurgency war in the Northeastern part of the country, saying that efforts being made to tackle humanitarian problems caused by the insurgency.
He expressed Nigeria’s satisfaction with American support on different fronts and assured that the economic challenges the country is currently facing are being frontally tackled, adding that the country will soon come out of the woods.
The US Secretary of State expressed delight at the many successes of the Buhari administration, pledging continued US support in the bid to overcome security, economic and other challenges.