Sixteen people were detained by the police for allegedly links to the pro-Fethullah terrorist organization on Thursday.
The raids were launched simultaneously across 14 provinces by the order of Izmir's chief public prosecutor's office.
The latest operation targetting Gülen's followers come after the prosecutor's office in İzmir issued warrants for 25 people as part of the investigation, launched in October. Police sources said nine others are still fugitive abroad.
Suspects were taken to the İzmir police department. They are accused of fabricating fake evidence for the defendants put on trial in the espionage case.
The charges also includes malicious attempts to leak classified military documents to foreign intelligence services and to discredit the defendants with the aim of purging them from the civil service and the military.
Over 300 co-defendants, incuding senior military officers stood trial in 2012, now famous as a military espionage case, on charges of possessing classified military documents. They were later released but the case still continues in Istanbul's 10th High Criminal Court. The shadowy group, led by the US-based cleric, is believed to seek a purge of the armed forces through the espionage case.
There are several cases accusing Gülen's loyalists of attempting to establish a parallel state by holding key posts in the police and the judiciary. On November 3, police detained a number of people including senior police officers and civil servants, suspected of being loyal to the Gülen-led network. Later, the chief prosecutor's office in İzmir ordered the arrest of 57 people, believed to be members of Gülen's illicit group.
