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A massive wildfire in northeastern Spain has consumed more than 12,000 hectares of forest and scrubland near the town of Uncastillo in the province of Zaragoza, making it the largest wildfire in the country so far in 2026. The blaze, which broke out on Wednesday, July 15, remains completely out of control as of Friday, July 17, despite the deployment of more than 450 firefighters and an unprecedented number of aerial assets.
Evacuations and Emergency Response
The fire has forced the evacuation of six villages in the Cinco Villas district of Zaragoza: Orés, Asín, Luesia, Malpica de Arba, Uncastillo, and Petilla de Aragón in neighboring Navarra. In total, more than 1,100 residents have been relocated to safety. Authorities have warned that further evacuations may be necessary if wind conditions worsen.
Jorge Azcón, the president of the Aragon region, described the situation as 'extremely dangerous' during a visit to the command post in Orés. 'The changing wind direction is particularly worrying because it will make the fire more active,' Azcón said, adding that the fire's perimeter has already reached 60 kilometers.
Suspect Arrested
Spanish Civil Guard police have arrested a man on suspicion of starting the Zaragoza fire. Witnesses reported seeing the suspect behaving suspiciously and attempting to flee the area as the flames began. Officers found a lighter in his possession, and a background check revealed he has a prior criminal record for similar arson offenses in other Spanish provinces. The suspect was carrying flammable items at the time of his arrest.
Parallel Fires in Guadalajara and Madrid
Spain is battling multiple wildfires simultaneously. In the province of Guadalajara, about 100 kilometers north of Madrid, a separate fire has already burned 2,000 hectares in the Sierra Norte de Guadalajara natural park. The fire, which started in the municipality of La Mierla, is spreading at a rate of 50 hectares per hour due to strong winds. Seven villages have been evacuated, and residents are not yet allowed to return. The Military Emergency Unit (UME) has been deployed to assist local firefighters.
In Lozoyuela, also north of Madrid, a third fire that burned 700 hectares has been brought under control. Authorities have lifted the lockdown in the area, allowing residents to resume normal activities.
Heatwave Conditions Fuel the Flames
The rapid spread of these wildfires is being driven by extreme weather conditions. Spain is experiencing a severe heatwave, with temperatures in parts of Andalusia and Murcia reaching 39 to 42 degrees Celsius. The official meteorological agency AEMET has issued orange-level heat alerts for several regions. Low humidity, strong winds, and abundant dry vegetation — the result of a rainy spring followed by scorching summer temperatures — have created a perfect storm for fire propagation.
Experts also point to the broader context of climate change and wildfire risk in southern Europe. 'The combination of rural depopulation, land abandonment, and rising temperatures is making landscapes more flammable,' said a spokesperson for the Spanish environmental NGO Ecologistas en Acción. 'We are seeing fires that are larger, more intense, and harder to control than ever before.'
Deadly Almería Fire Still Fresh in Memory
These new fires come just days after a devastating wildfire in the province of Almería, southern Spain, claimed 13 lives and injured at least 17 people. That fire, which started on July 9 near Los Gallardos, burned approximately 7,000 hectares and forced the evacuation of more than 1,600 residents. It was the deadliest wildfire in Andalusia and the third deadliest in Spanish history. Victims included seven British, three Belgian, one French, one Spanish, and one American citizen. Witnesses reported that a downed power line may have sparked the blaze, though the electricity company Endesa has denied responsibility.
The Almería fire was stabilized on July 12, and evacuation orders were lifted two days later. However, the tragedy has heightened public anxiety as new fires erupt across the country. The deadliest wildfires in Spain's history underscore the growing threat posed by extreme heat and changing climate patterns.
Impact on Communities and Environment
The Zaragoza fire is devastating a region known for its agricultural heritage and natural beauty. Uncastillo, a medieval town with a population of about 600, is directly threatened by the advancing flames. The loss of 12,000 hectares of forest will have long-term ecological consequences, including soil erosion, loss of biodiversity, and increased flood risk in the coming months.
Local authorities are coordinating with national emergency services to provide shelter, food, and medical care for evacuees. The Spanish government has pledged financial support for affected municipalities and landowners. However, the immediate priority remains containing the fires before they cause further destruction.
FAQ
What is the largest wildfire in Spain in 2026?
The largest wildfire in Spain in 2026 so far is the Zaragoza fire in the Cinco Villas district, which has burned over 12,000 hectares as of July 17, 2026.
How many people have been evacuated due to the Zaragoza fire?
More than 1,100 people have been evacuated from six villages in Zaragoza and Navarra. Additional evacuations may be ordered if the fire continues to spread.
What caused the Zaragoza wildfire?
A suspect has been arrested on suspicion of arson. He was found carrying a lighter and flammable items, and has a prior criminal record for similar offenses in other Spanish provinces.
How many wildfires are currently active in Spain?
As of July 17, 2026, three major wildfires are active: the Zaragoza fire (12,000+ hectares), the Guadalajara fire (2,000 hectares), and the Lozoyuela fire (700 hectares, now under control). A fourth fire in Ciudad Real has been extinguished.
What role does climate change play in Spain's wildfires?
Climate change contributes to more frequent and intense heatwaves, lower humidity, and drier vegetation, all of which create conditions for larger and more dangerous wildfires. Combined with land abandonment and rural depopulation, the fire risk in southern Europe is increasing significantly.
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