A 66-year-old driver involved in a head-on crash late Thursday has died in hospital.
Investigators are looking into whether a medical condition may have caused the crash on the Woodroffe Avenue overpass just after 3:30 p.m.
Paramedics say the man was found without vital signs but resuscitative measures were initiated and he was taken to hospital in critical condition.
Two other people in a vehicle and a pedestrian were treated for minor injuries.