Madame Nhu Trần Lệ Xuân, Nhu's wife, inflamed the situation by mockingly applauding the suicides, stating, "If the Buddhists want to have another barbecue, I will be glad to supply the gasoline." The pagoda raids stoked widespread public disquiet in Saigon. Students at Saigon University boycotted classes and rioted, which led to arrests, imprisonments, and the closure of the university; this was repeated at Huế University. When high school students demonstrated, Diệm arrested them as well; over 1,000 students from Saigon's leading high school, most of them children of Saigon civil servants, were sent to re-education camps, including, reportedly, children as young as five, on charges of anti-government graffiti. Diệm's foreign minister Vũ Văn Mẫu resigned, shaving his head like a Buddhist monk in protest. When he attempted to leave the country on a religious pilgrimage to India, he was detained and kept under house arrest.