https://techcrunch.com/2018/10/26/facebook-finds-more-disinformation-linked-to-iran/

Facebook has removed 82 pages, groups and accounts for “coordinated inauthentic behavior” that originated out of Iran.

The social networking giant discovered the “inauthentic behavior” late last week, according to a blog post by the company’s cybersecurity policy chief Nathaniel Gleicher. He said the operation relied on posing as U.S. and U.K. citizens, and “posted about politically charged topics such as race relations, opposition to the President, and immigration.” The company said that although its investigation is in its early stages, it traced the activity back to Iran but does not yet know who is responsible.