The Ankara Chief Public Prosecutor’s Office has issued detention warrants for at least 100 people, including medical doctors, professors and teaching assistants, due to their alleged links to the Gülen group, which the government accuses of masterminding a coup attempt in 2016. The group denies any involvement.

According to Kronos news portal, the suspects are accused of using the ByLock messaging app, which is considered by the government to be a tool of secret communication among supporters of the Gülen group. The app was once widely available online including Apple’s and Google’s app stores.

The report also said among the detainees were 1 professor, 1 assistant professor, 4 medical doctors, 2 teaching assistants and tens of former public officials who were fired from their jobs following the failed coup in 2016.