A total of 25 suspects were remanded into custody for suspected links to Fetullah Terrorist Organization (FETO), the group behind the 2016 defeated deadly coup in Turkey, according to judicial sources on Monday.

Istanbul Criminal Court of Peace remanded suspects, including on active-duty soldiers, as part of investigation into the infiltration of the terror group into the Turkish Armed Forces.

The suspects were accused of being a member of an armed terror organization.

Arrest warrants were issued for nine other suspects.

FETO and its U.S.-based leader Fetullah Gulen orchestrated the defeated coup on July 15, 2016, which left 251 people martyred and nearly 2,200 injured.

Ankara also accuses FETO of being behind a long-running campaign to overthrow the state through the infiltration of Turkish institutions, particularly the military, police, and judiciary.

Read more: Turkey: 25-FETO linked suspects remanded into custody