Twitter Inc. said on Thursday that it had permanently banned U.S. conspiracy theorist Alex Jones and his website Infowars from its platform and Periscope.

The company said in a tweet that the accounts violated its behavior policies.

Last month, Twitter banned Jones and Infowars for seven days, citing tweets that it said violated the company¡¯s rules against abusive behavior, which state that a user may not engage in targeted harassment of someone or incite other people to do so.

The ban came weeks after Apple, Alphabet¡¯s YouTube, and Facebook took down podcasts and channels from Jones, citing community standards.