Over 5,000 students have been hospitalised with poisoning in Iran since November, according to the report by the Iranian government’s truth commission.
In total, 230 schools in 25 Iranian provinces were targeted by the attacks.
On 30 November, the first case of poisoning was reported in the Iranian city of Qom, and in the three months that followed the first incident, about ten other girls' schools were targeted in that city.
However, the attacks spread rapidly across the country since the beginning of March.
