Two crew members have been killed after two firefighting helicopters collided in mid-air west of Athens on Sunday while battling a fast-moving wildfire, in one of the most deadly incidents of Europe's escalating summer fire emergency. The dead were identified as a Danish pilot and a Greek fire service liaison officer, who were aboard one of the two Bell helicopters that struck each other over the Psatha area, roughly 65 kilometres west of the Greek capital. The aircraft burst into flames and crashed into a ravine. The two crew members of the second helicopter — a British pilot and a Greek coordinator — survived with minor injuries and remained conscious, guiding rescuers to the crash site. Greek Prime Minister Kyriakos Mitsotakis expressed his "deepest sorrow," saying the loss "fills us all with grief."

The helicopters were leased from McDermott Aviation, an Australian company that has supported Greek firefighting operations for seven years and had 15 aircraft deployed in the country. John McDermott, the company's founder and president, said his team's "thoughts and deepest condolences" were with the families of those affected. Following the collision, all Bell helicopters across Greece were grounded as a precautionary measure while an investigation was launched into how the aircraft came to strike each other. The British pilot, a private contractor hired for the fire season, was not part of any bilateral assistance arrangement between the UK and Greece.

The collision came as gale-force winds exceeding 125 kilometres per hour drove flames through the tinder-dry forests of western Attica — the region surrounding Athens — threatening communities and an industrial district near Megara. More than 500 firefighters and 23 aircraft had been deployed, but the extreme winds at times prevented aircraft from collecting water from the sea. The fire, which broke out on Friday near Agios Vasileios, destroyed more than 100 homes overnight and forced fresh evacuations of coastal settlements including Porto Germeno. The advance carries painful resonance: the nearby 2018 Mati wildfire, also in the Athens region, killed 104 people, making it Europe's deadliest blaze this century. "When the winds blow with such force, even the dozens of aircraft we have at our disposal cannot operate safely," Mitsotakis wrote on social media. Civil protection minister Evangelos Tournas, a retired air force general, said the fire department had been "pushed to its limits."

The deaths add to a grim toll for Greek emergency services: three firefighters had already died from injuries sustained earlier in the week, and blazes have spread from Crete and the southern Peloponnese to the Ionian island of Cephalonia and across the Aegean. The crisis is unfolding against the backdrop of a continent-wide wildfire emergency. In southwestern France, a megafire near Bordeaux scorched 420 square kilometres and forced 224,000 people to flee — potentially the country's largest peacetime evacuation — before being contained within its perimeter, though still burning. A separate blaze in the Var department in southeastern France remained uncontained despite 1,500 firefighters being deployed. Spain's major fires, part of a deadly season that has killed at least 13 people, stopped advancing over the weekend. Across France and Spain combined, roughly 330,000 people have been displaced.

The scale of the crisis reflects a structural shift in European fire risk driven by climate change. Europe is the world's fastest-warming continent, having heated at more than twice the global average since the 1980s, according to the EU's Copernicus Climate Change Service. Scientists at World Weather Attribution found that human-caused climate change made the extreme fire-weather conditions behind this year's French blazes at least twice as likely. The continent entered 2026 after its worst fire year on record, with over 10,000 square kilometres burned in 2025. "A pristine forest, a paradise, was surrendered to the hands of the fire," said Minas Tzortzanis, a local farmer in the Megara valley. "Destruction. Total destruction."