Akin Abayomi, commissioner for health in Lagos, says Abba Kyari, the late chief of staff to President Muhammadu Buhari, died at First Cardiology Consultants in the state.
The presidency announced the death of Kyari on Friday.
He was buried on Saturday in Abuja according to Islamic rites.
In a statement, the commissioner said the state needed to clear the air following enquiries on the demise of the chief of staff.
Abayomi said the hospital where Kyari died was an accredited COVID-19 facility.
“Mallam Abba Kyari died from complications of Coronavirus infection at First Cardiology Consultants in Lagos,” Abayomi said.
“This hospital is a Lagos State designated high care, biosecurity-compliant, COVID-19 facility, accredited by the Health Facility Management and Accreditation Agency (HEFAMAA) of the Lagos State Ministry of Health.
“As a basis for accreditation, First Cardiology Consultants established a separate specialist wing with staff dedicated to the treatment of complicated cases of COVID-19, under the supervision of the Lagos State COVID-19 emergency response team.”
On Friday, Osagie Ehanire, minister of health, said no private hospital has been accredited to treat patients suffering from COVID-19.