Police raided headquarters of Turkey’s Doğan holding in İstanbul’s Üsküdar district as part of an investigation into the Gülen movement, on early Thursday.

While the details have yet to emerge, Turkish media reported that police raided the conglomerate to search its premises and that the investigation was a part of a case against its Ankara representative Barbaros Muratoğlu who was arrested over his alleged links to the movement in December, 2016.

In a statement to the Public Disclosure Platform (KAP), Doğan confirmed that the raid was carried out as part of Muratoğlu’s case and said its chief legal counsel Erem Turgut Yücel and a former executive Yahya Üzdiyen was detained.

Turkish government accuses the movement of masterminding the coup attempt while the latter denies involvement.