A woman, girl and boy were killed in a crash between an SUV and a sports car on Saturday night in Brampton that also injured three others, Peel police say.

The woman killed was 47, while the girl was 12 and the boy was 7, Peel Regional Police said in a news release on Sunday. All three were in the SUV and were from Woodbridge.

A girl, 12, also of Woodbridge, was also in the SUV and was injured in the crash.

Police said the vehicles collided on Highway 50 in the area of Countryside Drive shortly after 9 p.m., but police have not said in which direction the vehicles were travelling.

"It's all part of the investigation," Const. Akhil Mooken, spokesperson for Peel police, told CBC Toronto on Sunday.

The other two people injured were a man, 45, of Caledon, and a woman, 39, of Toronto. Both of them were in the sports car, according to police.

The three injured were taken to local hospitals in non-life-threatening condition. At the time, paramedics said the three injured were in stable condition.

Emergency crews were called to the scene on the Highway 50 in the Countryside Drive area just after 9 p.m. after an SUV and sports car collided. (John Hanley/CBC)

Police have not released the names of the dead, saying the families of the people involved have asked for privacy as they mourn their loved ones.

Mooken said police are also not releasing the relationships of the people involved to protect privacy.

Police appeal for witnesses

The cause of the crash has yet to be determined, and Mooken said police are appealing for witnesses.

Anyone who may have seen the crash, has dashboard camera footage or may have information about the actions of the drivers just before the crash is urged to call investigators.

At the scene on Saturday night, police said there is no evidence to suggest alcohol was a factor in the crash.

Peel police's major collisions bureau is investigating, and the unit is expected to consider whether speed and road conditions played a role.

Roads in the area have been reopened after they were closed for hours to allow officers to investigate.

Those with information on the crash are asked to call Peel police's major collisions bureau at 905-453-2121, ext. 4027.