Messenger service Telegram, which has proved popular with far-right groups and people opposed to Covid-related restrictions, has blocked 64 of its channels in Germany, Sueddeutsche Zeitung reported on Friday, without giving a source for the information.

The move came after Germany’s Federal Criminal Police Office sent shutdown requests to the messenger service, the paper said.

Telegram has been blamed in Germany for fuelling an increasingly virulent subculture of anti-vaccine “conspiracy theorists” who exchange news about supposed dangers and arrange protests that have spilled over into violence.

Germany’s Interior Ministry, which said last week it had held constructive talks with Telegram representatives, was not immediately available for comment on the report. Telegram did not immediately respond to a request for comment.

The Telegram app has become increasingly popular with activists and protesters, especially as platforms such as Facebook become more responsive to government pressure to crack down on those spreading lies, threats or conspiracy theories.

Interior Minister Nancy Faeser had said in remarks published last month that Germany could shut down Telegram and that it was discussing with its partners in the European Union how to regulate the messenger service.