A "fire tornado" has formed in the middle of a blaze in the Alvão natural park, in Portugal, while the country has been hit by violent fires for several weeks.
The scene was filmed Monday by firefighters who were fighting the flames in this area west of the territory.
This weather phenomenon occurs when a dust devil meets a fire.
The tornado can move for hundreds of meters and be several hundred meters high.
The interior of the tornado can reach 1,500 to 2,000 degrees.
This is a meteorological phenomenon that is not so rare.
A fire tornado was filmed by firefighters in Gironde in mid-August.
Another had been immortalized in California.
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Forest fires, now under control in the Alvão natural park, have ravaged more than 4,500 ha in the area.
Portugal has been hit hard by forest fires since the beginning of the year.
Nearly 90,000 ha of forest have been burned, representing approximately 1% of Portuguese territory, the highest percentage in the European Union.