The collision happened on Danforth Road at about 6:30 p.m. Saturday.
Police say their investigation suggests the eastbound SUV collided with the dirt bike at the Millenium Trail intersection.
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The boy was transported to hospital where he was pronounced dead.
According to police, the driver sustained no injuries and no charges have been laid.
The road was closed until 2:30 a.m. Sunday while police wrapped up the investigation,