A large, dark plume of smoke near Evin prison in northern Tehran was seen in several videos on social media on Saturday night.
An Iranian security official said “magazines” set fire to the prison’s clothing warehouse, which led to a fire in the prison, Iranian state media IRNA reported. Evin Prison in Tehran is a brutal regime prison where political dissidents are imprisoned.
“Now the situation is completely under control and peace is maintained in the prison, and the firemen are putting out the fire,” the security official told IRNA.
Activist group 1500tasvir reported that in videos posted on social media, gunshots were heard and Iranian special forces were seen moving towards the area believed to be the prison.
The Iranian official said the “accidents” were separated from the other prisoners and the remaining detainees have been returned to their cells, IRNA reported.
CNN cannot independently verify the situation.
Girls and women have led the protest movement that has reached Iran after the death of a young woman in police custody.
In September, 22-year-old Mahsa Amini died after being arrested by the country’s morality police for not wearing the hijab properly. Iranian authorities have since launched a brutal crackdown on protesters, and have sided with the country’s authoritarian regime on a number of grievances.
Witnesses said Iranian security forces beat, shot and arrested students at Tehran’s Sharif University. Last month, nearly two dozen children died in the protests, according to a report by Amnesty International.
At least 23 children – some as young as 11 – were killed by security forces in the last 10 days of September alone, the report said.
Earlier this week, an Iranian official also admitted that students from schools participating in street protests are being arrested and taken to psychiatric institutions.