Turkish police have detained a man spotted on a video that dates back to the early 1990s, fanning Turkish Islamic scholar Fethullah Gülen with a piece of paper during a speech he delivered at a mosque in İzmir’s Bornova district, pro-gov’t Sabah daily reported on Wednesday.

According to the report, the man in the video fanning Gülen is identified as İ.S., and he works as a dentist at the Bornova Oral and Dental Health Clinics in İzmir. The man was detained at his home in Bornova and sent to the Bornova Police Department for questioning, after police officers searched his house for an hour. During the interrogation, İ.S. reportedly denied “fanning Gulen,” saying he had been confused with someone else. The man also said he would sue the reporter who put his name in the report.

Gülen, an Islamic scholar who lives in self-imposed exile in Pennsylvania, is accused by the Turkish state of leading a terrorist organization. Despite Turkish requests for his extradition from the US, Turkey has not been able to provide any solid evidence of criminal or terrorist activity on the part of the movement inspired by Gülen, which is known for its educational work around the world.