A raid on X’s Paris office was carried out by the Paris prosecutor’s cybercrime unit on Tuesday with Europol and French police, as part of an ongoing investigation that expanded in July to include Grok. As previously reported by Reuters, Elon Musk and former X CEO Linda Yaccarino were also summoned for hearings in April.

The investigation, which was initially launched last year, is looking into several allegations against X and Grok, including complicity in possession and distribution of child pornography and denial of crimes against humanity (related to Holocaust denial content), along with claims that X was manipulating its algorithm and illegally extracting data.

X did not immediately respond to a request for comment.