Note: This story was updated at 8:18 p.m. to correct the age of the student.

Oak Ridge High School staff members seized an electronic stun device from an 15-year-old student in the cafeteria on Tuesday, authorities said.

The ORHS staff notified the Oak Ridge Police Department, which responded, took possession of the device, and interviewed the suspect, a press release said. The student was later released to a guardian.

The student did not threaten anyone with the device, and no injuries were reported, the release said. ORPD is investigating the incident, and charges are pending for the possession of a prohibited weapon on school grounds.

The incident occurred at lunchtime Tuesday.

More information will be added as it becomes available.