Turkish authorities had on August 10 issued arrest warrants for 35 media employees accused of using the Bylock messaging app allegedly used by US-based cleric Fethullah Gulen to mobilise followers in Turkey and of belonging to a "terror" group.
A total of 11 were detained at the time and late yesterday an Istanbul court placed nine under arrest ahead of trial and released two under judicial supervision, the state- run Anadolu news agency said.
Those released include a prominent former columnist for the Turkiye daily, Ahmet Sagirli. Anadolu said searches are continuing for the remaining 24 suspects, who are likely to have fled abroad.
The latest arrests come amid growing alarm over press freedom in Turkey under President Recep Tayyip Erdogan, in particular under the state of emergency imposed in the wake of the failed July 2016 coup and which remains in place.
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Turkey ranks 155 on the latest Reporters Sans Frontieres (Reporters Without Borders) world press freedom index, below Belarus and the Democratic Republic of Congo.
According to the latest figures from the P24 press freedom website, there are 164 journalists behind bars in Turkey, most of whom were detained under the state of emergency.
In one of the highest profile cases, 17 staff from the Cumhuriyet daily -- one of the few voices in the media in Turkey to oppose Erdogan -- last month went on trial for aiding "terror" groups.