The Department of State Services (DSS) has quizzed the acting chairman of the Economic and Financial Crimes Commission (EFCC), Ibrahim Magu, over activities of the agency.
Mr Magu was whisked away on Monday afternoon to a panel probing the EFCC.
The panel is said to be sitting at the Banquet Hall wing of the Presidential Villa.
The EFCC acting chairman was stopped while moving out of the Wuse II Annex of the EFCC in Abuja as he intended to get to the Force Headquarters.
Magu has been joined at the villa by his lawyer, Rotimi Jacobs.
Magu’s arrest comes a few days after the Attorney-General of the Federation (AGF), Abubakar Malami, accused him of gross infractions.
Malami had asked President Muhammadu Buhari to sack Magu whom he also accuses of insubordination and misconduct.
The DSS had in a report in 2016 indicted Magu of corruption.
President Buhari, however, had unsuccessfully tried in the past to have Magu confirmed by the Senate as substantive chairman of the anti-graft agency.