Lai Mohammed has denied Mr Trump's last week remarks that he had sent 1,000 ventilators to the West African country.

He said that if the consignment arrived, it would be announced publicly.

President Trump made the promise on a telephone call with President Muhammadu Buhari on 28 April. He said the US was committed to helping Nigeria's response to the coronavirus pandemic.

Last week, during a tour of the Ford motor plant in Michigan, Mr Trump said the US had just sent 1,000 ventilators to Nigeria.

Nigeria has so far recorded 8,915 coronavirus cases including 259 deaths.