A spokesperson for the school told ABC11 Eyewitness News it's unclear how the drugs ended up on campus and that police were notified.
However, Durham investigators say they were unaware of the incident and so far, police aren't seeking criminal charges.
After the ABC11 I-Team contacted the school, parents were notified about the incident in a letter.
"It is within this context that I regretfully inform you that during the past week we have had to respond to a situation relating to 8 students involved with the illegal use or possession of an illegal drug, marijuana," Interim Chancellor Tom Williams wrote. "Our student life and campus resources staff have exercised the utmost professionalism in fully reviewing the matter. Even the students involved, though having made a serious mistake, have conducted themselves in a responsible and respectful manner. Please know that in our resolution of this matter, it will be handled consistent with our NCSSM Student Code of Conduct and in a way that upholds the standards of our closely-knit living and learning community."
One parent, whose child was caught smoking weed and who does not want to be identified, called ABC11 to express concern about how the incident was handled.
"I just feel for the other parents," the concerned parent said in a phone interview. "There was no notification. It should've been reported day one."
School leaders say while the students made a mistake, the school handled the situation responsibly and according to its code of student conduct.
The internal investigation has concluded and the students that were involved are going through the school's disciplinary process. The details of that process were not disclosed.