At least six people have died as wildfires tear across both Spain and Portugal. Multiple wildfires are burning in the neighboring countries as high temperatures continue to blanket the region, according to The Guardian and the BBC.

Spain's worst wave of wildfires on record spread to the southern slopes of the Picos de Europa mountains on Monday and prompted authorities to close part of the popular Camino de Santiago pilgrimage route.

Cooler conditions are helping Spanish and Portuguese firefighters tackle deadly blazes that have forced tens of thousands of people to flee over the past two weeks.

High winds on Wednesday hampered efforts to contain wildfires in Spain that have already scorched a record stretch of land despite lower temperatures, authorities said."Temperatures have dropped, but strong gusts of wind continue to hinder firefighting efforts,

Firefighters have spent days battling blazes in Greece, Portugal, Spain and elsewhere. Forecasters said temperatures could pass 111 degrees in some places on Thursday.

Europe’s next heat wave is already building over the Iberian peninsula, potentially testing more temperature records after an unseasonably cool start to August.

This year is turning into one of the worst fire seasons in recent memory in Europe. Firefighters are struggling to contain out-of-control wildfires in western Spain and Portugal.

Defence minister attributes fires to climate change, heat wave. The Interior ministry said 27 people have been arrested and 92 were under investigation for suspected arson since June.