Memos reportedly written by a “former British intelligence operative” and circulated throughout the U.S. intelligence committee allege that the Russian government has collected compromising information about President-elect Donald Trump over several years. They also claim that Trump’s lawyer, Michael Cohen, met with Kremlin officials to orchestrate the release of documents hacked from American political organizations.

The collection of memos, prepared as opposition research for political figures and later obtained and published by BuzzFeed News, contain unverified claims about Trump’s dealings with Russia and some easily disproved errors. The FBI is investigating the claims and has not confirmed some of them, CNN reports. A summary of the 35-page collection of memos was presented to President Barack Obama and to Trump, according to CNN. TechCrunch contacted the Trump transition team for comment and will update if we receive a response. Trump tweeted, seemingly in reference to the report, that it was “fake news” and a “political witch hunt.”

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