Twitter said it has suspended over one million accounts for “promotion of terrorism” since 2015.
It claims that its efforts have begun to make the platform “an undesirable place” to call for violence.
In its latest transparency report, Twitter said it suspended 274,460 accounts between July and December 2017 “for violations related to the promotion of terrorism.”
Twitter has faced pressure from governments around the world to crack down on jihadists and others calling for violent attacks, while at the same time maintaining an open platform for free speech.
In the latest six-month reporting period, Twitter said 93 percent of the suspended accounts were “flagged by internal, proprietary tools,” and that 74 percent were cut off before their first tweet.
It said government reports of violations related to the promotion of terrorism represent less than 0.2 percent of all suspensions in the period.
Twitter also used the report to express concerns about what it called “legal threats to freedom of expression” online in countries around the world.