The former minister arrived in Lagos from the United States en route Amsterdam and headed for Abuja to keep an earlier scheduled appointment with the EFCC on Monday.
The EFCC is investigating a firm, belonging o two sons of Obanikoro, Sylvan McNamara for receiving N4.75bn arms funds from the office of the former National Security Adviser between April 4, 2014, and December 15, 2014.
The two sons are Babajide and Gbolahan.
The commission is claiming with documentary proof that a total of N4.745bn was paid into the Diamond Bank account of Sylvan McNamara during the period.
The minister arrived Abuja from Lagos by 7:45am and was heading to the EFCC to keep his appointment with the anti-graft agency as of the time of filing this story.
The Head of Media and Publicity of EFCC, Mr. Wilson Uwujaren, could not be reached for comments, as the calls to his mobile telephone did not connect.