Supporters of a U.S.-Russian plan to construct nuclear reactors in the Middle East touted former national security adviser Michael Flynn's support of their plan for a project that needed sanctions on Russia to be removed, according to a report Friday.

Documents show particular aspects of the plan included the involvement of a Russian company facing U.S. sanctions to assemble the nuclear equipment, Reuters reported.

Although the documents do not indicate that Flynn attempted to move forward the with plan with Trump and his aides, the documents reveal that ACU Strategic Partners, a Washington-based nuclear power consultancy, believed both Flynn and Trump supported it.

"Donald Trump's election as president is a game changer because Trump's highest foreign policy priority is to stabilize U.S. relations with Russia which are now at a historical low-point," ACU's managing director, Alex Copson, said in an email last fall just after the election, to potential business partners.

Flynn had previously worked as an adviser for ACU at least until mid-2016.

Flynn pleaded guilty on Friday in a federal court in Washington for lying to the FBI in January about his contacts with then-Russian Ambassador Sergei Kislyak. Flynn was charged on one count of “willfully and knowingly” making “false, fictitious and fraudulent statements” to the FBI about communications exchanged with Kislyak shortly after Trump took office.

ABC News reported that Flynn intends to testify against Trump and members of his family and plans to say then-president-elect Trump told him to make contact with Russians.

Flynn was removed from his post at the White House earlier this year after it was revealed he misled the administration about his sanctions-related communications with Russians.

Editor's note: This story has been updated to reflect ABC News' acknowledgment that when Michael Flynn reportedly plans to testify that President Trump told him to make contact with the Russians, he will say it happened when Trump was president-elect, not a candidate.