Twitter has permanently suspended Milo Yiannopoulos, an editor at the conservative news outlet Breitbart and one of its most notorious trolls.

The expulsion of Yiannopoulos, who counted more than 300,000 followers on the service, comes just one day after he urged on a hateful mob that harassed ‘Ghostbusters’ actress Leslie Jones to the point that she quit Twitter.

Jones received a barrage sexist and racist messages from users, including fake messages made to look like they came from her account. With little way to fight back, she decided to quit the service on Monday “with tears and a very sad heart.”

Twitter I understand you got free speech I get it. But there has to be some guidelines when you let spread like that. You can see on the — Leslie Jones 🦋 (@Lesdoggg) July 19, 2016

Profiles that some of these people are crazy sick. It's not enough to freeze Acct. They should be reported. — Leslie Jones 🦋 (@Lesdoggg) July 19, 2016

The key moment appeared to be when Twitter CEO Jack Dorsey responded to one of Jones’ tweets:

Hi Leslie, following, please DM me when you have a moment — jack (@jack) July 19, 2016

This is far from the first time that Yiannopoulos has courted controversy on Twitter. He became a driving force in GamerGate, which vaulted him to cult future status on certain parts of the internet. He then lost his verification badge, which Twitter typically gives to members of the media and celebrities, in January, which only seemed to amp up his interest in offending Twitter’s management and many who use the service.

In a statement to TechCrunch, Twitter said:

People should be able to express diverse opinions and beliefs on Twitter. But no one deserves to be subjected to targeted abuse online, and our rules prohibit inciting or engaging in the targeted abuse or harassment of others. Over the past 48 hours in particular, we’ve seen an uptick in the number of accounts violating these policies and have taken enforcement actions against these accounts, ranging from warnings that also require the deletion of Tweets violating our policies to permanent suspension. We know many people believe we have not done enough to curb this type of behavior on Twitter. We agree. We are continuing to invest heavily in improving our tools and enforcement systems to better allow us to identify and take faster action on abuse as it’s happening and prevent repeat offenders. We have been in the process of reviewing our hateful conduct policy to prohibit additional types of abusive behavior and allow more types of reporting, with the goal of reducing the burden on the person being targeted. We’ll provide more details on those changes in the coming weeks.

TechCrunch reached out to Yiannopoulous, but we did not hear back. Yiannopoulos did release a comment via Breibart: