Police say they are not life-threatening injuries.The suspect allegedly attempted to attack a fourth person but the victim escaped without serious injury.
Det. Phil Hibbeln told CP24 that the attacks appeared to be random.
The intersection is open to traffic, after being closed for police investigation.
Police cannot confirm whether any of the victims are Ryerson students.
They say the victims entered the Mattamy Athletic Centre after the stabbings occurred on the street.
An investigative team is reviewing security footage.
Shawn O’Neill, 62, is facing multiple charges, according to the Canadian Press.
He has been charged with four counts of aggravated assault, six counts of possessing dangerous weapons, six counts of assault with a weapon and four counts of attempted murder.
With files from Jordan Sprague.