Former Minister of Aviation, Femi Fani-Kayode, is being interrogated by the Economic and Financial Crimes Commission (EFCC).
Officials of the anti-graft agency confirmed the development to CHANNELS TV on Tuesday.
The former minister, who recently defected to the ruling All Progressives Congress (APC) from then opposition Peoples Democratic Party (PDP), was invited to answer questions relating to the forgery of a medical report which he allegedly procured to evade his trial before a Federal High Court in Lagos, the sources said.
Fani-Kayode was said to have arrived at the Lagos Office of the commission with his lawyer at about 1pm.
The Commission said it would give an update on the interrogation later when it concludes its investigations.
Fani-Kayode is standing trial on an alleged N4.6 billion fraud before Justice Daniel Osiagor of the Federal High Court sitting in Lagos.
The EFCC had charged him alongside a former Minister of Finance, Nenadi Usman, and two others on 17 counts of conspiracy, money laundering, and fraud.
At the last sitting of the court on October 13, the judge had imposed a cost of N200,000 on him due to his failure to appear before the court for his re-arraignment following the transfer of the former trial judge, Justice Rilwan Aikawa.
He was ordered to pay the fine or stand the risk of having his bail revoked after he failed to appear before the court for his re-arraignment.