The EU has promised two firefighting planes, according to Spain's Minister of the Interior. At least five major fires are still out of control, writes the newspaper El País.
Thousands of hectares have been charred, and around 9,500 people have had to leave their homes due to the fires.
In Tres Cantos, located just north of the capital Madrid, a man who was employed at a riding center died. According to media reports, he tried to save the horses - but did not escape the flames that destroyed the riding facility.
The fire in Tres Cantos has developed positively during the night to Wednesday, while the fire raging in Ourense in northern Spain is described as the most serious.
Dry winds
In Castile and León in northwestern Spain, a man was also killed during extinguishing work.
The dry winds are described as the fire department's biggest enemy and are feared to make the situation even worse in the coming days.
Prime Minister Pedro Sanchez writes on X that there is an extreme risk of forest fires, and urges great caution.
Similar conditions are seen in other parts of Europe, which have struggled with a heat wave recently. In Portugal, several fires are raging, as well as in Greece and the Balkans. In Montenegro, a soldier has died in a fire.
Devouring olive groves
Outside the Greek city of Patras, the fire department is fighting to protect homes and agricultural facilities, as the flames devour the olive groves. Greek firefighting planes are also assisting in the work against fires in neighboring Albania, which is also struggling to stop the spread. An 80-year-old man has died in a fire just south of Albania's capital Tirana.
In southern France and Italy, including major cities such as Rome, Milan, and Florence, several warnings have been issued due to high temperatures that often exceed 40 degrees on the thermometer.