TORONTO - Ontario Premier Dalton McGuinty says police should consider reviewing their protocols in light of a police chase that led to a multi-vehicle crash which killed two teenagers in Toronto over the weekend.

"Police chases occur frequently, but infrequently they result in some kind of tragedy,'' McGuinty said on Sunday. "But I think every time something like this happens, it's an opportunity for police protocols to be reviewed, to ensure that a chase doesn't compromise public safety.''

The police chase began early Saturday morning when police say they were investigating a gun call and noticed a speeding car in a south-west suburb of Toronto.

They begin pursuing the car and engaged in a chase until the 15-year-old driver of the car struck two taxis, killing a 16-year-old passenger and sending a 17-year-old girl to hospital with life-threatening injuries.

The teen driver was killed when his car hit a light pole. The taxi drivers weren't seriously injured.

It's not yet known if the boy was involved in the gun call.

The names of the victims have not been released.

Twelve investigators from the province's Special Investigations Unit are probing what happened during the chase and urging the public for help.

The Special Investigations Unit investigates when there is an accident involving police and civilians resulting in serious injury or death.