A Dunwoody High School student has been arrested following the death of a fellow student from an alleged drug overdose during class.

According to WSB, the name of the student arrested has not been released. The station reports that the victim, known only as Mia, allegedly purchased a Percocet laced with deadly fentanyl and collapsed during a class.

Mia’s family have started a GoFundMe to pay for her funeral expenses.

The school was on partial lock down on Monday afternoon following the incident.

In a letter sent to parents by DHS Principal Tom Bass, the incident “occurred as many students were testing.”

“After the incident, the school was put on lock down to limit movement within the building,” he said. “We will not disclose additional information surrounding this student’s death out of respect for the family’s privacy.”

Bass, in his letter, said grief counselors and other personnel will be on hand tomorrow for any students needing their services. 

Dunwoody Public Information Officer Michael Cheek said the DeKalb School Police are handling the investigation, with Dunwoody assisting.  

This is a developing story. Check back for updates.