A four vehicle crash near Countryside Drive and Torbram Road shortly after noon on Thursday ended with a 37-year-old woman and her three young daughters dead.
Peel Regional Police Const. Akhil Mooken said when officers arrived on the scene at around 12:15 p.m., they found several people suffering from various injuries.
According to news reports, an impaired driver in a blue Infiniti was driving erratically through the intersection at high speed when it collided with another car.
Based on preliminary information, the incident began when a Peel Regional police officer who was travelling west on Countryside Drive observed an Infiniti on the eastbound lanes.
A short time later, at the intersection, the Infiniti collided with a van that was travelling north on Torbram Road, the van subsequently hit a light pole.
Inside the van was the mother Karolina Ciasullo, who was travelling with her daughters Clara, 6, Liliana, 4, and Mila, 1. The six-year-old was pronounced dead at the scene.
The mother and her four-year-old daughter were rushed to Brampton Civic Hospital where they later died, she said.
The one-year-old was also transported to a Brampton hospital, but was later transferred to the Hospital for Sick Children, where she died of her injuries.
The driver of the Infiniti, a 20-year-old man, was also transported to a hospital where he remains in critical condition.
Two other vehicles were also damaged during the collision.
According to reports, four investigators, three forensic investigators and one collision reconstruction investigator have been assigned to the case.
Peel Regional Police Const. Akhil Mooken would not confirm if police were in pursuit of a vehicle at the time of the crash but said no arrests have been made at this time.
While the SIU conducts its probe, Peel Regional Police’s major collision bureau will be doing a parallel investigation into the cause of the crash.
He added that the collision has been devastating to all of those involved, including the officers who responded to the scene.