One target was Micah White, a cofounder of Occupy Wall Street. When he was contacted in May 2016 by a man named Yan Big Davis, who presented himself as a freelance reporter, he didn’t think anything of it, since he often gave interviews about activism.

According to emails seen by BuzzFeed News, Davis said he was writing for a site called BlackMattersUS, which had over 200,000 followers and focused “mostly on racism and police brutality themes.” In its report, based on interviews with current and former employees of the troll farm as well as a source close to its leadership and internal documents, RBC found that BlackMattersUS was linked to the Internet Research Agency.

The BlackMatters site, which is still up, features awkward language throughout. Its contact page tells those who would reach out, “You are exactly that person, who can help us to figure out not only the top stories, but also the events that are really important to an ordinary African-American.” The group did not immediately respond to a BuzzFeed News request for comment.