Turkish police on Thursday detained the chief legal advisor and a former chief executive of Dogan Holding, one of the country’s biggest conglomerates, in a probe into the network of US-based Turkish cleric Fethullah Gülen, who is blamed for the failed coup in Turkey.

Dogan—which has interests in media, finance, energy and tourism and owns newspaper Hürriyet and broadcaster CNN Turk—said, however, the raids were only on the personal offices and homes of the two individuals and that its operations were unaffected, according to Reuters news agency.