Offices belonging to Elon Musk's social media platform, X, in France are being raided by the Paris prosecutor.
Its cyber-crime unit is conducting the searches, it said in a statement on X. Europol is assisting.
It added it was related to an investigation opened in January 2025 following complaints about X's algorithm and the content it recommended.
In its statement, the prosecutor's office said the operation formed part of efforts to ensure X complied with French laws.
It said the probe, led by French cyber-crime police, was expanded in July 2025 after reports of sexually explicit deepfakes and holocaust denial content circulating on the platform.