Four people were stabbed after a fight broke out in King West early Saturday morning.
Police say they were called to King and Portland Street just after 3 a.m. to reports of a large fight.
Paramedics say of the four victims, three men were taken to hospital in serious condition with at least one suffering from life-threatening injuries.
All the victims were between the ages of 20 and 25.
Officers say one man has been taken into custody, but no further details have been released.