Spain has sent 500 more troops to fight raging wildfires, bringing the total deployed to 1,900, as the death toll from the blazes has risen to four. On Sunday, a firefighter died after an accident during firefighting efforts when his truck fell down a steep hill,

France sent two teams of 100 firefighters, who were “currently arriving,” Virginia Barcones Sanz, the director general of civil protection and emergencies in Spain, told reporters on Monday. Germany is deploying a team of 66 firefighters with 21 vehicles, while Finland is sending 30 firefighters, she said.

Europe has been warming twice as fast as the global average since the 1980s, making the region more vulnerable to wildfires.