Istanbul — Turkey faced a “very risky week” for wildfires, an official said Monday, as blazes across parts of southeast Europe and the Balkans damaged homes and led to a huge firefighting operation that included evacuations. Nearly 100 people face prosecution over the fires in Turkey.

Wildfires that have engulfed Turkey for weeks spread rapidly overnight, threatening Bursa and forcing 3,500 to flee. Greece and Bulgaria are also contending with fires.

Wildfires in Turkey scorched over 7,000 acres, killing 14 including rescue workers, and prompting legal action as blazes threaten neighboring countries.

The Presidential Communications Directorate said that 84 wildfires broke out simultaneously across Turkey on July 26.

Wildfires driven by searing temperatures and strong winds ravaged Turkey and parts of Greece in recent days, leaving four people dead and forcing hundreds of residents and tourists to flee the flames.