A woman is dead after a car struck her, but her 12-week-old infant escaped serious injuries even though the car clipped the child's stroller.

The accident occurred at about 12:40 p.m. Tuesday afternoon at Eglinton Avenue and Martin Grove Road.

Police allege the vehicle, a Toyota Camry driven by an 83-year-old woman, ran a red light.

Const. Hugh Smith of the Toronto Police Service's traffic unit told ctvtoronto.ca that they initially heard of three pedestrians trying to cross Martin Grove Road on a green light.

There was a northbound vehicle on Martin Grove stopped at the Eglinton Avenue lights waiting to turn left, being driven by Chris Stanfield. One pedestrian made it safely across.

Stanfield told reporters: "... I heard an impact."

"The mother, pushing the stroller, passed the stopped vehicle ... and was struck by the northbound Toyota Camry," Smith said. "She was then pinned under the vehicle and dragged for about 30 feet where the Toyota came to a stop."

The stroller got knocked over, spilling the infant onto the road. The first pedestrian picked up the baby. She put it in Stanfield's SUV to keep the child warm. Paramedics later took the child to hospital. The baby boy is okay, Smith said.

"Unfortunately, the mother was still trapped under the vehicle, and about 15 minutes later, she was pronounced deceased on scene by the paramedics," he said.

There were early reports the woman tried to push her child to safety. Smith said it might have been more the element of surprise and the stroller being out ahead of her.

"If she'd had any indication that vehicle was coming ... she would have pulled that stroller back if she felt she was going to get hit," Smith said. "That northbound vehicle had made no attempt to stop," he alleged.

Had the first woman been a few steps slower, she might have been hit, he said.

Police blocked off the intersection to allow the accident construction team to investigate. It re-opened to traffic shortly after 5 p.m.

"Charges are pending. It's definitely going to be something starting with the red light. I'm not sure if they're going to bump it up to careless or dangerous (driving) causing death or bodily harm," Smith said.

Police are trying to identify the infant's family.

Smith told reporters at the scene that it's crucial pedestrians make sure they're constantly looking for threats while crossing roads -- even when the walk light is on.

Other incidents

Earlier Tuesday, a transport truck struck and killed a pedestrian in Vaughan. The incident occurred at about 9 a.m. in the area of Keele Street and Rutherford Road.

The victim in that case is a 17-year-old male. York Regional Police say the youth will not be named at the request of the family.

York Police shut down the collision scene for several hours while its collision reconstruction team conducted an investigation. The roads re-opened shortly before 3 p.m.

Besides the two fatal accidents, three other vehicle-pedestrian accidents occurred in Toronto on Tuesday.

Smith said the most serious incident occurred at Dundas Street West and Roncesvalles Avenue. An 80-year-old woman suffered life-threatening injuries to her head.

With a report from CTV Toronto's Alicia Markson