Kayode Fayemi, former governor of Ekiti state, is under interrogation at the office of the Economic and Financial Crimes Commission (EFCC).
The ex-governor is at the zonal command of the anti-graft agency in Ilorin, Kwara state capital.
According to report, Fayemi arrived at the EFCC facility at about 10am on Thursday.
Operatives of the anti-graft agency are grilling the former governor over allegations of N4 billion misappropriation.
The probe is said to be connected to the handling of funds during his tenure as governor of Ekiti state.
Fayemi, a member of the ruling All Progressives Congress (APC), was governor of the state from 2018 to 2022. He handed over to Biodun Oyebanji after the latter won the governorship election in June 2022.
The former governor had reportedly written the EFFC seeking to delay his invitation over the alleged misappropriation of funds.
He was said to have requested a postponement due to his participation in the launch of two books in honour of former President Muhammadu Buhari.
Fayemi was quoted as saying that as one of the organisers of the launch, he was bound to be present at the event.