Four teenagers have been arrested after they allegedly broke into Dickson College in the early hours of Wednesday morning.
Police believe the teenagers may have filmed the break-in and uploaded it to social media.
Police saw the four teens when they were called to the school by the automatic intruder alarms around 1am, and arrested two of them on site.
The other two tried to get away but were chased and arrested a short distance away.
Acting Superintendent Jeff Knight said no property was stolen or damaged but the teenagers were arrested as they allegedly entered the school building, which he said is a criminal offence.
"While police investigations are ongoing at this time, actions like this can lead to criminal charges such as trespass.
"We believe that footage of this incident has been circulated via social media, so we are asking the people that may have received it to come forward and speak to police or Crime Stoppers," Acting Superintendent Knight said.
Police are asking any witnesses or anyone who may have received the video footage to contact Crime Stoppers on 1800 333 000 or ACT Policing Operations on 131 444.