https://phys.org/news/2019-03-facebook-blocks-efforts-britain-romania.html

"We're taking down these pages and accounts based on their behavior, not the content they posted," Facebook cybersecurity policy chief Nathaniel Gleicher said in a statement.

"In each of these cases, the people behind this activity coordinated with one another and used fake accounts to misrepresent themselves, and that was the basis for our action."