The former naval chief was picked up in Abuja Wednesday morning by EFCC operatives over alleged money laundering to the tune of $600,000 through his personal accounts.
An EFCC source close to the interrogation confirmed that Madueke was summoned in connection with some funds, which were traced from some suspicious transactions into his account but did not give details of the transactions.
The source did not also say whether the transactions had anything to do with his wife, Diezani, who many believe authorized the controversial oil deals now rocking the industry. But a source close to Madueke said the man was simply invited to make some clarifications and nothing more.
A source at the EFF, however, hinted that although Madueke had been cautioned and released on administrative bail, he might be asked to report back on a future date.