A total of 24 people, under custody since March 7, have been jailed pending trial over their money deposits to the now-defunct Bank Asya.
State-run Anadolu news agency reported Monday that 24 out of 41 former employees of the Isik Yayincilik publishing firm who were detained as part of an investigation into the Gulen movement last week have been put in pretrial detention.
The remaining were released on judicial control.
The suspects are accused of raising financial support to a terror group.
Turkish government blames the Gulen movement for the July 15, 2016 failed coup while the latter denies involvement.
Bank Asya and Isik Yayincilik are among a thousand companies that were shuttere over Gulen links earlier.