There was a serious crash on Wolfe Island Sunday morning.
Around 10:15 a.m., emergency crews responded to the island on Road 96, which runs the north side of the island.
A 72- and 78-year-old were taken to hospital via Air Ornge, with one described as having life-threatening injuries.
The passengers in the other vehicle, who were 71 and 72, were taken to hospital by paramedics.
Anyone who witnessed the collision, or who may have relevant dashcam video, should contact Leeds County OPP at 1-888-310-1122 and refer to incident number E240916466.