Natural gas suspected in Calgary house explosion

In the aftermath of the blast, Enmax shut off power to the area, affecting hundreds of households. Power has since been restored.

Speaking on the Eyeopener, the fire chief noted that explosions involving natural gas are rare and not something Calgarians need to worry about.

"We have thousands of homes in the city of Calgary safely using natural gas," Dongworth said. "This is a very rare occurrence, and obviously something has gone wrong here. There's no question."

He said that if residents smell natural gas in their homes, they should call the fire department immediately to get it checked out.

Coun. Andre Chabot, who represents Ward 10 and is currently in Vancouver, said his heart goes out to the victims and their relatives.

"Whatever the [investigation's] findings are, we have to ensure that we take every measure possible to ensure this doesn't happen again," he said.