The inquiries are part of the "fight against terrorism", which continues with determination everywhere, including on social networks.
Russia lays to rest murdered Turkey envoy
After a coup attempt in July, Turkey declared a state of emergency and launched deep purges of perceived opponents, sparking concern among human rights groups which accuse Ankara of repression.
Turkish authorities are often accused of restricting access to social networks after serious incidents, such as attacks, to stop the circulation of information that could "undermine state security".
Access was severely disrupted after the assassination on Monday of Andrei Karlov, Russia's ambassador to Turkey . Twitter and YouTube have slowed since the publication on Thursday of a video in which the Islamic State group purportedly burned alive two captured Turkish soldiers.
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