Students at Sheung Shui Government Secondary School, where five students were arrested over a drug case, were offered counselling at a morning assembly yesterday. On Friday, five Form Two girls became ill in classes after allegedly taking drugs during lunchtime. Two teenage boys have been arrested and appeared in juvenile court in Fanling. Magistrate Don So Man-lung adjourned the case to April 6, pending a chemical analysis of confiscated substances. The pair have been remanded in custody. At the assembly, headmaster Chan Yau told the 900 students that the incident had broken his heart. 'The school would like to take this opportunity to explain to fellow students what happened,' Mr Chan said. 'And we would also like to arouse students' awareness of the harmful effects of taking drugs.' He said the school had no plan to dismiss the five students but would offer them special counselling. Some students said they had heard about drugs being taken in school toilets. One said teachers conducted surprise checks and another said she wanted to change schools. An Education Bureau spokesman said the school wrote to parents to explain the incident. 'School social workers, psychologists and teachers will be strengthening counselling to students to enhance their understandings about the harmful effects of drugs and [their] legal liability.'