Two people, including an infant, have died following a serious collision between a tractor-trailer and a passenger vehicle on Highway 69 north of Key River.

Ontario Provincial Police say officers were called to the scene at approximately 8 p.m. Friday. The driver of the passenger vehicle, a 30-year-old from York, Ontario, was pronounced dead at the scene.

An infant travelling in the same vehicle was transported to hospital by emergency responders but later succumbed to their injuries.

The tractor-trailer driver escaped with non-life-threatening injuries.

Highway 69 was closed in both directions between Highway 522 in Cranberry and Highway 400 in Parry Sound while emergency crews and investigators worked at the scene. The highway reopened shortly after 4 a.m. Saturday.

Police say the investigation into the fatal collision is ongoing.