Donald Trump’s transition team did not believe former national security adviser Michael Flynn appreciated the risks of his communications with Russia ahead of Trump’s inauguration,The Washington Post reported on Friday.

Flynn had apparently been warned about contacts he had with Russian ambassador Sergey Kislyak — communications that were certain to have been monitored by US intelligence agencies, according to US officials cited by The Post.

The Trump transition teams apparently deemed the matter serious enough to ask the Obama administration for a classified CIA report on Kislyak to share with Flynn.

“The document was delivered within days, officials said, but it is not clear that Flynn ever read it,” The Post’s Greg Miller and Adam Entous wrote.

Those warnings from the Trump transition team’s national security staff to Flynn came one month before Flynn was captured on recordings discussing newly issued US sanctions against Russia, The Post reported. The Obama administration had leveled those sanctions in response to Russia’s meddling in the US presidential election.

Read the whole story from Business Insider.