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,

Europe has been warming twice as fast as the global average since the 1980s, according to the EU’s Copernicus Climate Change Service. Scientists say that climate change is exacerbating the frequency and intensity of heat and dryness in parts of Europe, making the region more vulnerable to wildfires.

Spain was fighting 14 major fires, according to Virginia Barcones, general director of emergency services. Temperatures were expected to climb over the weekend.