https://www.theguardian.com/technology/2018/apr/04/facebook-removes-more-than-100-accounts-linked-to-russian-troll-factory

Company says the Internet Research Agency, which is among those charged by a US grand jury with conspiracy to defraud, has abused the platform

Facebook has removed 135 accounts which it believes are linked to the Russia-based Internet Research Agency (IRA), an organisation accused of spreading divisive messages across the internet, supporting the Russian government and attempting to weaken its rivals.