A 16-year-old student was arrested Monday for possessing a knife on a Flagler County school campus, deputies said.

The investigation began around 11:08 a.m. after the Flagler County Sheriff's Office received a phone call from a mother of a student who attends Flagler Technical Institute, which is located on the same campus as Flagler Palm Coast High School in Palm Coast.

Deputies arrived to the school and conducted a search of the area in question. When the investigation began, Flagler County Public Schools raised the threat level on campus to orange, which means all outdoor activities were canceled. No classes changed, and students and staff remained in place.

The status was eventually relaxed to green to resume normal school operations after no gun was located.

While deputies investigated further, they found money, an empty pill bottle and a brass knuckle knife located behind a bathroom wall.

A student, who is from Palm Coast, was arrested and charged with one count of felony possession of a weapon on school property. The teenager was later released to his parents, deputies said.

The student is an eighth-grader at Indian Trails Middle School, but he was attending a class at FTI.

Deputies said it remains unclear if a gun was brought to the FTI campus and the investigation is ongoing.