A 53-year-old man was arrested by the Mossos d’Esquadra on suspicion of causing the wildfire that broke out in Castellví de la Marca, Barcelona, on August 12, 2026. A joint investigation by regional police and Agents Rurals traced the fire’s origin to a vehicle found burned beside a forest track leading toward the Castellot area. Investigators suspect gross negligence caused the blaze, rather than deliberate arson.
Officers discovered the charred vehicle in woodland near the fire’s reported starting point. Although its license plate was partially damaged, investigators identified its owner and later found him walking along a nearby road. Police said inconsistencies in his account prompted further questioning. The arrest formed part of the investigation; it is not a judicial finding of guilt.
Before the fire was discovered, witnesses had alerted Agents Rurals after seeing a white vehicle speeding along the track toward Castellot. The vehicle was later found engulfed in flames, matching the witnesses’ description. Investigators examined the burned car and other evidence, including the damaged plate, as they reconstructed the events and identified its owner.
Agents Rurals continued fieldwork to establish the fire’s cause and origin while the man was being questioned. The blaze affected 9.46 hectares, much of it within the Montmell-Marmellar Natural Interest Area (PEIN), a protected area under Catalonia’s nature-conservation structure. The incident shows the fire risks to environmentally valuable landscapes when human activity causes an ignition.
The wildfire occurred during an exceptionally severe fire season in Spain. More than 270,000 hectares were affected nationwide in 2026, including around 60,000 hectares of agricultural land. The Castellví de la Marca fire was one incident in that broader national context. The Spanish government later approved up to €9 million in aid for agricultural operations affected by the season’s fires; the measure was not specific to this blaze.
In a related context, firefighters in Castilla y León have recently highlighted critical shortages and outdated equipment following record wildfire seasons. The Castellví de la Marca case shows the operational challenges of preventing and investigating fires near protected natural spaces.
Wildfires remain a persistent threat in Spain, where human activity can lead to accidental or negligent ignitions. The Montmell-Marmellar area is among Catalonia’s protected landscapes, and the investigation into the August fire centers on whether the vehicle’s owner caused the blaze through gross negligence. Any determination of criminal responsibility rests with the judicial process.
