In neighbouring Portugal, where fires are also blazing, another firefighter was killed on Sunday in a "tragic" traffic accident, President Marcelo Rebelo de Sousa said. Fires have also broken out in Greece, France, Turkey and the Balkans as a heatwave has scorched swathes of southern Europe.

Thousands of firefighters backed by the military and water-bombing aircraft on Monday battled dozens of wildfires across Spain and Portugal, as the death toll increased to six since the outbreaks began.

Two firefighters have died across Spain and Portugal as the Iberian peninsula grapples with devastating wildfires exacerbated by an enduring heatwave. Thousands of firefighters have been deployed across southern Europe in recent weeks to beat back a series of deadly blazes.