The head of Iran’s prison service has apologized after leaked videos showing the abuse of detainees at Tehran’s notorious Evin prison.
Hackers posted clips showing guards beating prisoners and dragging one of them to the ground.
The head of the Prisons Authority, Muhammad Mahdi Al-Haj Mohammadi, said he bears responsibility for the “unacceptable behaviour”.
Many political prisoners, dual nationals and foreigners are held in Evin Prison.
Jiar Gul, the BBC’s Persian Service correspondent, says the leaked videos confirm abuse and mistreatment in prisons across Iran.
But Gul added that former political prisoners say the footage is nothing compared to what they were exposed to in detention. They accuse the authorities of routinely using sexual, physical and psychological torture, a charge the Iranian government denies.
Surveillance footage released by a hacking group shows several guards beating a handcuffed man.
In another video, an elderly man is seen collapsing in a parking lot before guards approach and start dragging him on the ground through the prison.
Other footage shows guards in the control room of Evin prison reacting to the words “cyber attack” in Farsi appearing on the screens in front of them.
The hacked screens also show a message that reads: “Evin prison has a stain on Raisi’s black turban and white beard,” referring to the new Iranian president, Ebrahim Raisi.
On Tuesday, Hajj Mohammadi publicly apologized to Supreme Leader Ayatollah Ali Khamenei, and the country for the abuses seen in the videos.
“I take responsibility for such unacceptable behavior and pledge to try to prevent a recurrence of these bitter events and to deal seriously with violators,” he wrote on Twitter.
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