Former Deputy Governor of Adamawa state Bala Ngilari was quizzed for about three hours by operatives of the EFCC at the headquarters of the commission on Tuesday.
Reports say the leadership of the EFCC had taken a decision to defreeze one of several accounts operated by the Adamawa State Government to enable the state pay outstanding salaries owed civil servants.
The other accounts on which the freeze order had not been lifted are said to still be under investigation.