In a media release, Steinbach RCMP say they received information about a bomb threat made against Steinbach Regional Secondary School at around 10:35 this morning.
Steinbach RCMP and Fire immediately responded to the scene, and the school was evacuated as a precaution.
RCMP discovered an unknown male had called from a pay phone advising of the threat.
Manitoba RCMP Police Dog Services were called in to assist with the search.
A short time later, officers were able to clear the scene after no suspicious devices or items were located.
A 16-year-old male youth has been identified as a possible suspect.
The investigation continues.