"For me, hell was not the moment Israel attacked; hell was the moment they wouldn't open the door [of the cell] for us," Motahareh Goonei recalls in an exclusive interview with the BBC.
A political activist, Goonei was in solitary confinement in Iran's notorious Evin Prison when it was hit in a targeted attack by Israel on 23 June.
Satellite imagery, witness accounts and verified footage obtained by BBC News Persian reveal new details of the attack in the closing hours of the Israel-Iran war and of those who died.
The high-security complex, perched on the northern edge of Tehran, has held thousands of political prisoners over the past half-century. On that day in June, the prison became the site of the deadliest Israeli strike on Iranian soil in terms of civilian casualties.
Iranian authorities say 80 people were killed - among them prison staff, inmates, medical workers, visitors and residents of nearby neighbourhoods.
