Detention warrants were issued for 72 people who used to work for the now-closed Süleyman Sah University as part of an investigation into the Gulen movement, which the government accuses of masterminding the July 15 coup attempt, on Friday.

The suspects include academics and university personnel, who are accused of having used ByLock, a smartphone app that Turkish authorities claim to be the top communication tool among Gulen followers.

Süleyman Sah University was earlier closed down by the government over its ties to the movement.

Turkey has already detained more than 120,000 people over alleged or real ties to the movement.