Shirzad Karimi has been arrested by the security forces and there are no reports on the reason for his arrest.
Three members of the Democratic Union of Kurdish students Mehdi Doagou, Milad Karimi and Souran Daneshvar have been arrested in the recent days.
Furthermore, Jafar Afshari, a political prisoner at Oroumiyeh Prison has gone on hunger strike to protest his false charges and his condition in prion limbo.
Azeri student Afshin Shahbazi has also been arrested on September 22nd. He had been summoned to Intelligence Minsitry several times.