Canada

Fire Breaks Out at Saskatchewan Oil Refinery

Blaze triggers evacuation with no injuries.

Residents of Trois-Rivières in Quebec ordered to shelter-in-place.

On July 6, 2013, a runaway freight train derailed and exploded in Lac-Mégantic, Quebec.

Firm wants time to investigate the nature of the June 29 emergency.

Carbon monoxide report being investigated by fire authorities.

Earlier death also happened in British Columbia.

Vents open at a specific pressure within milliseconds of an explosion.

Closed printing plant/paper mill has been the target of vandals in recent years.

Anhydrous ammonia presents a risk of explosion under the right circumstances.

Previous blast occured at plant in December.