The Foothills Composite high school was broken into over the weekend.
On Saturday, August 6 at about 11:30 p.m., Okotoks RCMP responded to a Break and Enter at the school after alarms were triggered.
A door had been propped open, though the suspects had fled the scene.
Officers smelled gas in the school's science lab and discovered a gas valve had been turned on.
The Okotoks Fire Department responded to ensure no other gas leaks had occurred.
Anyone with information on the incident is asked to call Okotoks RCMP at (403) 995-6400 or anonymously via Crime Stoppers at either 1 (800) 222-TIPS or at www.crimestoppers.ab.ca