BERLIN (AP) — German authorities have arrested a Syrian man suspected of being a member of the Islamic State group and spreading propaganda for the extremist organization.

The federal prosecutors’ office said the 22-year-old, identified only as Esmail A.A. in line with German privacy rules, was arrested Thursday in the eastern state of Saxony.

More Migrants Reporting Themselves for Terrorism to Avoid Deportation https://t.co/8uwKINP1NF — Breitbart London (@BreitbartLondon) April 18, 2018

It said the suspect posted numerous pieces of IS propaganda in WhatsApp chat groups that he described as a “news agency,” starting in September, and in two cases instructions on how to participate in IS.

Prosecutors say he shared material depicting scenes of IS captives being tortured and executed.