Fowler was arrested over an alleged N5bn fraud carried out while he headed FIRS.
The former FIRS boss is said to be undergoing interrogation at the antigraft’s office in Lagos State.
This was confirmed to Channels Television by the spokesperson of the EFCC, Mr. Wilson Uwujaren.
According to Uwujaren, Fowler is being interrogated in connection to an ongoing investigation by the anti-graft agency.
President Muhammadu Buhari sacked Fowler in 2019 after he was issued a query for worsening tax revenues since 2015.