Wildfires rage in Alberta as 10,000 Canadians flee

STORY: Some 10,000 residents of Alberta have been unable to return home amid firefighting efforts.

Officials have warned that more wildfires could spread in the next few hot and dry days, even as firefighters make progress in tackling widespread blazes that have slowed the outflow of natural gas from Canada into the United States, spiking prices.

About 2,700 firefighters, including personnel from Canadian and U.S. agencies and the Canadian army, were battling about 94 active wildfires on Friday (May 19).