Weeks of high temperatures and virtually no rain have left much of Scandinavia dangerously dry.
Wildfires are raging and Sweden has called on other European countries to help fight them.
The largest fire in Fagelsjo-Lillasen in Jamtland covers more than 2,500 hectares.
More than 20,000 hectares of forest is on fire in the Nordic country.
In a normal year, Sweden would expect wildfires to affect about 2,000 hectares in total, the Swedish Civil Contingencies Agency said on its website.
So far, there have been no reports of deaths or injuries.
Starving livestock It is Sweden’s worst drought since 1944 and after a very cold winter, pasture has failed to grow to provide enough grazing for livestock.
Despite emergency imports of fodder, cattle and sheep are having to be slaughtered to avoid death by starvation.
Norway, Finland and western Russia have all experienced unusually hot-and-dry conditions.
Thunderstorms will occur throughout the weekend, but the hot weather will persist.