We learnt that Mark, who served as Senate President from 2007 to 2015, arrived at the Abuja office of the EFCC around 12noon and was released at 7pm.
The source added, “The former Senate President arrived around 12pm and spent seven hours responding to several questions from detectives.
“He was released at 7pm on the condition that he must submit his passport to the commission which he did.
“Senator Mark is expected to return soon to answer more questions”
The former Senate President is expected to account for over N5.4bn slush cash and campaign funds allegedly traced to him.
He was alleged to have received over N500m from the government of former President Goodluck Jonathan during the build-up to the 2015 presidential election.
The money is alleged to have been part of the $2.1bn meant for arms procurement.
The Senator, who has been representing Benue-South Senatorial District since 1999, is also accused of sharing N2.9bn to his colleagues while presiding over the upper legislative chamber.
The former Senate President has, however, denied all the allegations levelled against him.
In a statement on Sunday, Mark said, “To set the records straight, Senator Mark was invited by the EFCC via a letter addressed to the National Assembly to answer questions on the 2015 presidential election campaign funds as it concerned Benue State.
“As a law-abiding citizen, Senator Mark honoured the invitation.
“Curiously, they also alleged that the PDP paid over N2bn into the National Assembly’s account which he, as then President of the Senate, allegedly shared among the 109 senators, including PDP, Action Congress of Nigeria and All Nigerian Peoples Party (members) in 2010.
“Again, to the best of his knowledge, Senator Mark is not aware of such transactions. This simply did not make sense to any right thinking member of society.
“Senator Mark wondered why anybody would think that PDP will pay money into National Assembly account. He, however, clarified all the issues raised before returning home.”
