Wildfires are burning in parts of Europe as millions of people across the continent struggled to adapt to the new reality: record summer heat.

An official in Turkey says the country faces a “very risky week” for wildfires as blazes across parts of southeast Europe and the Balkans damaged homes and led to a huge firefighting operation that included evacuations.

Wildfires that have engulfed Turkey for weeks spread rapidly overnight, turning the sky red over the eastern suburbs of Bursa, the country’s fourth-largest city and forcing over 3.500 people to flee.

The funerals of 10 rescue volunteers and forestry workers killed while battling a wildfire have been held in Turkey.