Finland’s worst wildfire in more than half a century scorched the country’s northwest for a fifth day on Friday, tearing through forests left dry by record summer heat.

A fire chief in the south-west said firefighters were called to several fires a day in recent days, saying that all were caused by people who ignored warnings.

The warmest springtime temperature of the year so far is 14.1 degrees Celsius, and fires are popping up around the country.

Seija Paasonen has been tracking the patterns of the North American forest fires for several weeks now. She says that the smoke has traveled as far as Europe owing to wind patterns in the upper atmosphere.