In Iran, a massive fire engulfed parts of Tehran’s infamous Evin prison Saturday, killing at least eight people and injuring dozens of others. It’s unclear exactly what happened, though Iranian state media reported prisoners and guards clashed before the blaze erupted. Witnesses reported hearing explosions and gunfire coming from the prison. Evin is well known for housing political prisoners and anti-government protesters. Many of its former captives have said they were mistreated or tortured there. The blaze came as Iran remains roiled by mass protests and just a day before the one-month anniversary of the death of 22-year-old Mahsa Amini, who died while in the custody of Iran’s so-called morality police.