Families of Air Force Academy students who were detained over their alleged involvement in the July 15 coup attempt, gathered in protest in front of Ankara’s Sincan prison on Wednesday or the third day of holy Eid-al-Alha.

Releasing dozens of balloons into the air, relatives of the detainees protested the massive purge launched following the putsch, in whistles and applause.

Turkey has detained more than 40,000 people and arrested around 24,000 over their alleged links to the coup attempt. Among the detainees are 15-year-old military students.