Four students ingested the cocaine, some orally and others inhaled it. It is unknown how much each student ingested. They were treated at Children's Hospital and all are said to be okay.
It wasn't immediately clear how the student who brought the cocaine to school came into possession of the drug.
School leadership at Thomson Elementary notified the parents of the students involved and met a group of parents after school to address their concerns regarding the incident. A letter from school leadership was also sent home explaining what happened.
The student who brought the cocaine to school has been charged with Possession of a Controlled Substance.
The school was already scheduled to be closed today. Counselors will be at Thompson on Monday to discuss the incident with students and teachers.