Mr. Mba was arrested on Monday morning in Abuja and taken to the EFCC’s headquarters where he is currently being interrogated.
Those familiar with the investigation say the EFCC had been investigating the NBC in the past one month.
Last week, some detectives stormed the headquarters of the NBC, ransacking computers and files in the Finance and Account unit.
During the operation, some key Accounts staff where taken away.
Sources said the arrested officials made confessional statements to the EFCC implicating Mr. Mba and some top officials of the NBC.