Sunrise Propane trial

The province’s case against Sunrise Propane started Monday more than three years after the deadly explosion in northwest Toronto.

The explosion killed an employee and a firefighter died trying to douse the flames.

The inferno forced the evacuation of 12,000 people.

Sunrise Propane faces several charges under provincial labour and environmental laws.

A report from the Ontario Fire Marshal’s Office said an illegal “tank to tank” transfer released liquid propane from a hose causing the explosion.

However, the actual ignition source is still unknown.

Cleaning up the site cost more than $2 million.