Iranian officials have said they are investigating the mysterious poisonings of schoolgirls around the country over the past three months. One official has blamed the attacks on unspecified groups opposed to education for girls, but many Iranians believe that the state is itself behind these “chemical attacks”, to intimidate women and girls and keep them at home and out of school. Photos and videos shared online show the impacts of these widespread attacks, resulting in as many as 800 poisonings.