A vehicle and motorcycle collided at the corner of Lyons Avenue and Farwell Terrace around 8:30 p.m. Tuesday.
Witnesses who live near the accident site told SooToday the motorcyclist did not appear alert and CPR was performed by paramedics.
The motorcyclist was stretchered from the scene and taken to the hospital with potentially life threatening injuries.
The driver of the vehicle appeared uninjured.
Police have traffic blocked on Lyons between Patrick Street and Korah Road.
The cause of the collision is currently undetermined.
We will update this story as more information becomes available.