A 35-year-old motorcyclist was seriously injured after a collision on Toronto’s Gardiner Expressway early Saturday morning.

Toronto police say a motorcycle and another vehicle collided near the Spadina Avenue exit shortly before 5 a.m.

Paramedics transported the woman to hospital with serious injuries that were not considered life-threatening. The driver of the other vehicle allegedly left the scene after the crash. Police have not provided a description of the vehicle.

Police continue to investigate the collision and are working to identify the vehicle involved.