The school located near Greenwood and Danforth Avenues was quickly being run by the Toronto police moments after Wednesday's stabbing. The police spent 75 minutes going to each of the classrooms searching for those responsible for the stabbing.

"At this point, it's being investigated as a robbery," Sgt. Marilyn White said last night at the scene.

"I know there was an altercation," she said, explaining few details were immediately available.

"I have been told by the officers doing the investigation that it was a robbery. But I don't know what property, if any, was taken."

The police were unable to find the suspects who are believed to be two teenage boys aged 16 or 17. The boys may or may not be students of the school.

The victim was rushed to treatment at St. Michael's Hospital's trauma centre. His stabbing is considered potentially life-threatening.

The school has almost 600 students and prior to this incident had not seen violence of this nature before.

Police are talking to students who may have been a witness to the crime. They are checking the school's surveillance system to see if the crime was captured on tape.

If you have any information that would help police in this case place call the police at 416-808-5504 or Crime Stoppers at 416-222-TIPS.