Detained Kurdish civilians Nasser Rezaei and Mohammad Daniali went on hunger strike on 9 June in protest at their continued detention and torture in the Ministry of Intelligence detention centre in Ilam, Ilam province.
Efforts by the families to find out the situation of the detainees were unsuccessful.
Security forces arrested Rezaei, from Sarab Bagh in Ilam province, at the Ahvaz bus terminal in Khuzestan province on 22 May.
Daniali, a member of the Binar mountaineering group in Abdanan, Ilam province, was arrested on 14 May in Dehloran, Ilam province.
Since their arrest, the two civilians have been denied the right to legal counsel and receive family visits.