Firefighters in Alberta, Canada, have made progress around Jasper, but weather conditions that fuel wildfires are expected to heighten again this week, and officials predict it could be months before the blaze is over.

A Canadian official says a wildfire that has destroyed hundreds of structures in the town of Jasper, Alberta, is the largest blaze recorded in Jasper National Park in a century and could still be burning months from now.

As much as half of Jasper, Alberta, which lies inside one of the country’s most-visited national parks, has been destroyed, officials said.