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SAN FRANCISCO — Facebook said on Tuesday it had uncovered a new covert campaign to spread divisive political messages on its social network, its first acknowledgment of potential political meddling ahead of this year’s midterm elections.
The company removed 32 pages and accounts from Facebook and Instagram “because they were involved in coordinated inauthentic behavior,” the company said in a statement. The pages and accounts were connected to protests planned in Washington next week, Facebook said.
Facebook did not name the source of the campaign but did say that it was similar to Russia’s efforts around the 2016 election.
“Some of the activity is consistent with what we saw from the (Russian Internet Research Agency) before and after the 2016 elections,” Facebook said in a blog post. “And we’ve found evidence of some connections between these accounts and IRA accounts we disabled last year, which is covered below. But there are differences, too. For example, while IP addresses are easy to spoof, the IRA accounts we disabled last year sometimes used Russian IP addresses. We haven’t seen those here.”
Sen. Mark Warner, D-Va., confirmed that Senate Intelligence Committee staff were briefed this week by Facebook officials. The company also said it had shared its findings with U.S. law enforcement agencies, members of Congress and other tech companies.
Warner said he believed that Russia was behind the effort.
“Today’s disclosure is further evidence that the Kremlin continues to exploit platforms like Facebook to sow division and spread disinformation, and I am glad that Facebook is taking some steps to pinpoint and address this activity,” Warner said in a statement.
Rep. Adam Schiff, D-Calif., also pointed to Russia as the source of the campaign.
“Today’s announcement from Facebook demonstrates what we’ve long feared: that malicious foreign actors bearing the hallmarks of previously-identified Russian influence campaigns continue to abuse and weaponize social media platforms to influence the U.S. electorate,” Schiff said.
Facebook said that whoever was behind the posts had worked to mask their identity, trying to evade measures that the social network put in place in the past year to deter election meddling by foreign governments.
The campaign paid others to run ads on their behalf, Facebook said, and they used internet phone services and virtual private networks, which allow users to disguise their location.
Facebook said that more than 290,000 accounts followed at least one of the pages in question, and that the pages had names such as “Aztlan Warriors,” “Black Elevation,” “Mindful Being” and “Resisters.”
The people behind the pages posted more than 9,500 times on Facebook and only once on Instagram before the accounts were shuttered on Tuesday morning, the company said.
They also created about 30 events since May 2017, Facebook said. The largest planned event had about 4,700 accounts interested in attending, although it was not immediately clear how many people went.
They ran about 150 ads for approximately $11,000 on Facebook and Instagram, paid for in U.S. and Canadian dollars, Facebook said.
Senate Intelligence Chairman Richard Burr, R-N.C., and Warner told NBC News that they will be holding an open hearing with top executives from Facebook, Twitter and Google this fall. A source familiar with planning tells NBC News Facebook COO Sheryl Sandberg and Twitter CEO Jack Dorsey have confirmed their attendance for the hearing, which is expected to take place the first week of September. Google’s CEO Sundar Pichai has yet to respond to a request to appear before the panel.
Details about the hearing was first reported by BuzzFeed News.
The hearing comes as the Senate Intelligence Committee continues its investigation examining what role social media played in the 2016 election and how Russia used those platforms to influence voters.
This will be the second time the committee has asked representatives from the top social media and internet companies to testify before them. The panel questioned general counsels from all three companies last November in an open setting. Facebook and Twitter officials have also met with Senate Intel staffers last year.
The committee is also currently looking at how the Obama administration and FBI responded to the attacks by the Russians. They plan on wrapping up these investigations before delving into the final chapter of their Russia investigation: whether collusion occurred with the Trump campaign.
David Ingram and Alyssa Newcomb reported from San Francisco. Mike Memoli reported from Washington. Frank Thorp V contributed reporting from Washington.