A huge fire broke out at a prison in the Iranian capital, Tehran, on Saturday night, after nearly a month of protests over the death in custody of Jina Mahsa Amini.
Gunshots and chanting can be heard in the background.
Ten were reportedly hospitalized, of which four were in serious condition.
Rights groups said that there had been protests in solidarity with inmates of Evin prison late into the night in Tehran, with chants heard of "death to the dictator."
German Foreign Minister Annalena Baerbock pledged continued focus on the protests in Iran.
According to Gholami, Iranian human rights activists fear that the situation in Evin is "the regime's own tactic to maybe eliminate political prisoners," despite the official communications on the fire.