"Investigations are underway and seven suspects were arrested by Wednesday," Head of the Iranian Armed Forces' Judicial Organization Hojjatoleslam Mohammad Kazzem Bahrami told reporters on the sidelines of a special ceremony to welcome Tehran's new prosecutors general.
Asked about the identity of the suspects, Bahrami noted, "All these people had been involved with the events at Kahrizak (detention center)."
He also dismissed reports on the release of the head-warden of Kahrizak detention center, adding, "I do not confirm the news bout his freedom. This individual who is a law enforcement official, is still in custody."
Bahrami further announced that around 90 complaints have so far been filed in connection with the events at Kahrizak, and assured that "all issues raised in the complaints are under investigation".
"We hope that investigations into the case finish soon, so that we can prepare the case and present it to the court."
On Wednesday, Farhad Tajarri, a member of the Iranian parliament's special committee for studying the conditions of post-election detainees, told FNA that the court hearing for addressing law violations by suspects in the Kahrizak case would be held in the near future.
Iran shut down the nonstandard detention center earlier in July, following an order by Supreme Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei.
Iran's Police Chief Brigadier General Ismail Ahmadi Moqaddam announced later that the head-warden of Kahrizak detention center was detained after he was dismissed from his post due to the "nonstandard conditions" of his jail.
Head of the parliament's special committee Parviz Sarvari later announced that after closing down the detention center, all those involved with the illegal activities at the jail have been dealt with in a variety of ways, including "suspension of a number of judges, disciplinary punishment, imprisonment of offenders and referring culprits to the judiciary for further trial".
Iran's Deputy Police Chief Ahmad Reza Radan has also underlined that all officers and prison guards who had violated the law in the Kahrizak detention center will receive severe punishments.