The Kelowna Fire Department said traffic along Highway 33 was closed in both directions to prevent any possible ignition sources.

Halifax Regional Fire and Emergency believes that the man lit a cigarette in their vehicle which ignited a propane tank and caused the explosion.

“This is a good example of how fragile the supply chain is in Canada."

About 3,200 CN conductors, trainpersons and yard workers across the country walked off the job Nov. 19 over worries about long hours and fatigue.

The Liberal government says it is very aware of the negative impact the strike is having.

"This is people’s livelihoods that we are dealing with," said Conservative MP Karen Vecchio.

The strike has already choked output at industrial plants and is putting some of Canada's agricultural industry at risk.

Quebec Premier François Legault says a strike at Canadian National Railway Co. has left the province with fewer than five days before it runs out of propane.

Dangerous items include flares, lithium ion batteries from cell phones and computers, and small propane or butane tanks.

The Bedford Highway has re-opened to all traffic, but according to police, there is no access to the Bedford Place Mall at this time.