Get the latest news and updates from Dawn
AGIOS KONSTANTINOS: North America and Europe have been ravaged by wildfires this summer after a period of record-breaking heatwaves and little rain conditions that scientists say have been exacerbated by climate change.
In Greece, two firefighting helicopters collided while helping to control a huge wildfire on Sunday that has destroyed more than 100 homes northwest of Athens, while a fresh blaze forced evacuations on the popular tourist island of Kefalonia.
State broadcaster ERT reported that one crewmember had been found safe, while rescuers were searching for the second.
Television footage showed one of the helicopters explode and plunge to the ground in flames after an apparent rotor collision.
