The former dean of the Zirve University’s medical faculty was arrested over alleged use of ByLock mobile app.

The professor, identified as M.Ö., has been put in pretrial detention, state-run Anadolu agency said Tuesday.

Zirve is among 15 universities the government shuttered as part of a post-coup crackdown against the Gulen movement.

ByLock is a smartphone application, which Turkish authorities believe is a communication tool among supporters of the Gulen movement, accused of masterminding the July 15, 2016 coup attempt. The movement denies involvement.

Tens of thousands of people, including civil servants, police officers, soldiers, businessmen and homemakers, have either been dismissed or arrested for using ByLock since the failed coup last year. Among such arrestees is Amnesty International’s Turkey bureau chief, Taner Kilic.