Judiciary spokesperson Asghar Jahangir posted on the office’s official Mizan news agency website that those killed included staff, soldiers, prisoners and members of visiting families.

Israel and Iran entered a fragile ceasefire on June 24, the day after Israel struck Evin Prison. Last weekend, the U.S. joined Israel in its war against Iran by bombing three nuclear sites, Fordow, Isfahan, and Natanz, in the largest B-2 bomber operation in U.S. history.

The source also disputed suggestions that Iran had time to move enriched uranium stockpiles out of its nuclear facilities before the strikes. "It was stockpiled at Isfahan, Natanz and Fordow and it's now under the rubble," they said.