Likely China group reported the critical accounts.
Via CNN:
New York (CNN Business)Twitter has apologized for suspending accounts that were critical of the Chinese government’s response to the Tiananmen Square protests of June 4, 1989.
Twitter (TWTR) wrote on its public policy feed Saturday that the suspended accounts were swept up in a weekly effort to crack down on “spam and other inauthentic behaviors.”
“Sometimes our routine actions catch false positives or we make errors. We apologize,” Twitter said. It added that the suspended accounts had not been reported by the Chinese government.
The suspension of the accounts, both inside and outside China, elicited criticism from US Senator Marco Rubio, who tweeted the company was silencing voices on behalf of the Chinese government.