Facebook confirmed the research was shared with advertisers, but said the article was “misleading”.
RT has been blocked from posting content to its Facebook page.
New updates to the social site for German users can be expected in the coming weeks.
The incident is the latest example of the social media platform’s algorithms failing to distinguish between reliable.
The social network giant said in a blog post on Friday that it had discovered two new discrepancies in its advertising data.
No decisions about the company's approach in the country had yet been made.
“There is a big controversy happening right now, about this election particularly, regarding Facebook.
Despite the best efforts of Mark Zuckerberg to downplay Facebook’s role in the election of Donald Trump.
The initiators of the sale were funds of the Zuckerberg family.