In different videos widely circulated online, Ganduje was apparently captured collecting kickbacks from contractors.
At a press briefing in Abuja on Monday, Magu refused to respond to a question on the video.
When asked to speak on the issue, he responded: “Next question please”.
Magu, however, said the agency was seeking to extradite former Minister of Petroleum Resources, Diezani Alison-Madueke, because the UK authorities failed to take legal action against her.
“It has taking so long and it is very unreasonable that she is not being tried there.
“So, we are tired of waiting and that was why I said if you cannot prosecute her, bring her and we will prosecute her. There is no prosecution going on in the UK.
“We are involved in the investigation in this country and outside the country including America and London. I have been there. We have worked and sat together. We cannot wait endlessly. I think three years and above is sufficient for you to take her to court. There is no court process against her in the UK. Nobody is prosecuting her there,” he added.
