As reported by Censor.NET, he said it to reporters after interrogation at the National Anti-Corruption Bureau of Ukraine, RBC-Ukraine informs.
"I will not comment on questions and answers, investigation prohibits revealing this," Kononenko said.
He said he proposed to arrange a face-to-face questioning with Economy Minister Aivaras Abromavicius.
"I reiterated my request for a face-to-face questioning with Aivaras Abromavicius. Under the new Criminal Procedure Code, this is called cross questioning," Kononenko said.
He also suggested that the NABU should test Abromavicius with a lie detector.
"I once again told investigators about my proposal to Abromavicius to pass a polygraph test to establish the truth," the MP underlined.
According to Kononenko, he is ready to take part in investigation with involvement of any people mentioned by Abromavicius.