Turkish police detained prominent Turkish businessman Hüseyin Hersek as part of an ongoing investigation on the alleged followers of the Gülen movement, the pro-gov’t Sabah daily reported on Monday.

According to the report, acting on a tip off, a group of police officers on Monday raided a house allegedly belonging to Hersek, and detained several people, including the businessman himself.

Hersek is the president of Kırklareli Industry and Business Association and owns a tour company based in Kırklareli province.

Hersek was seen having serious difficulty in walking while being taken to the police station for interrogation.

The Turkish government accuses the Gülen movement of masterminding a coup attempt on July 15, 2016 in Turkey.

The movement rejects the accusiation.