ATHENS — As Spain and France began to gain control over devastating wildfires that last week sparked one of their largest peacetime evacuations, Greece was battling multiple blazes on Sunday — and a sense that its odyssey is far from over.

Two firefighters, a Greek and a Danish national, died after a pair of helicopters battling a major wildfire burning out of control west of Athens crashed in midair. Another Greek and a British national were recovered alive.

Television footage showed one of the helicopters exploding and plunging to the ground in flames after the collision. Foreign firefighting and helicopter crews are often deployed in Greece to help tackle wildfires.