https://www.theguardian.com/technology/2019/mar/07/facebook-fake-account-network-spread-hate-speech

More than 100 false accounts posed as far-right and leftwing activists to sow division, says company

Facebook has removed a network of more than 100 accounts and pages for “coordinated inauthentic behaviour” on its social networks – the first time it has done so for UK-based operations seeking to influence British citizens.