A teenager, whom school authorities think to be a former student, ran naked through a school and set off a fire extinguisher. The school authorities were saved from any panic as no students were present in the school at that time.

According to police reports, the surveillance camera shows footage of the man breaking a window to enter the school. He also tampered with surveillance cameras and left his fingerprints there.

AP reports that the authorities from Central Tech have confirmed the presence of a man in a hallway about 6 a.m. Thursday after an alarm went off. After that the camera shows him holding his clothes in his hands and running off.

The stranger was reportedly in the school for 10 to 15 minutes before running off the arrival of security personnel.