An Ankara court accepted an indictment on Friday accusing 10 policemen of belonging to a group that is allegedly attempting to overthrow the government. The suspects are charged with "being members of an armed terrorist organization" - what government officials call the Gülenist Terrorist Organization - and "gathering personal information of Turkey's president, Recep Tayyip Erdoğan, and his family" for the aforementioned group.

According to the indictment, the suspects gathered the information via a system called DEVA - Detailed Data Analysis System -, which security forces use to store the personal data of each individual in the country for security purposes.

The policemen, who had also been previously charged for "seizing personal information illegally," reportedly conveyed the information gathered to the group in 2012-2013, the indictment said.

The government accuses the Gülen movement, led by U.S.-based Turkish imam Fethullah Gülen, of plotting to overthrow the government by infiltrating state institutions, mainly the police and the judiciary.

Gülen supporters are accused by the government of engaging in long-term wiretapping on high-ranking government officials and mounting a coup d'etat attempt through a graft investigation in December 2013, which had targeted Cabinet members.