REGINA—Investigators are getting closer to pinpointing the source of an explosion at Regina’s Co-op refinery.
Fire marshal Randy Ryba says the blast site is being inspected and crews are sifting through debris and other material.
Ryba says the blast is believed to have been set off when products lighter than gas were ignited in a reactor.
But there are no definitive answers yet as investigators have not been able to get to the reactor’s platform.
Ryba says the area is delicate and explosion crews have to work slowly and carefully.
The explosion on Christmas Eve could be heard around the city.
There is no timeline for when the investigation will be completed.