Twitter had 36,000 active Russian accounts tweeting during election

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Jack Dorsey attends the ‘#SheInspiresMe: Twitter celebrates female voices & visionaries’ event in Cannes, France.

Twitter, Google and Facebook representatives will testify before Congress on Tuesday, revealing just how much of a role Russia had in spreading information on social networks during the presidential campaign.

Twitter will reveal that more than 36,000 active Russian accounts spread more than 1.4 million tweets, Business Insider reported Tuesday. A source told the site that those accounts “generated automated, election-related content.”

Facebook, on Monday, revealed even more troubling figures. The company said Russians reached more than 126 million users on Facebook during the campaign, using 80,000 posts to the social network.

Russia has denied any role in the election.

Read more on Business Insider.