Yusuf was suspended by Adewole last week over allegations of fraud.

Osinbajo’s directive is coming barely 24 hours after the House of Representatives asked the minister to recall the embattled NHIS boss.

In a letter dated July 10, 2017, the Chief of Staff to the acting president, acknowledged receipt of two petitions against Yusuf, dated April 21, 2017, from one Solomon Agbo and another, dated May 12, 2017, from Tunde Ladele.

Ipaye wrote: “His Excellency, Prof. Yemi Osinbajo, Acting President, Federal Republic of Nigeria, is in receipt of the referred two petitions, in which allegations of fraud and abuse of office were levied against the Executive Secretary of NHIS, Professor Yusuf Usman; and has directed that the petitions be forwarded to you for inquiries and necessary action.

“Please accept the assurances of His Excellency, the Acting President’s consideration and best wishes.”

Yusuf has denied all allegations, maintaining that he is being victimised for fighting corruption in NHIS.