Twitter Inc and Facebook Inc said on Monday they had dismantled a state-backed information operation originating in mainland China that sought to undermine protests in Hong Kong. Twitter said it suspended 936 accounts and the operations appeared to be a coordinated state-backed effort originating in China. Facebook said it had removed accounts and pages from a small network.

source https://finance.yahoo.com/news/1-twitter-facebook-china-backed-185750930.html?.tsrc=rss