Spain is deploying 500 more soldiers to help battle wildfires that have ravaged parched woodlands during a prolonged heatwave, Prime Minister Pedro Sánchez said.

Firefighters in Spain, Portugal and Greece battled ongoing wildfires Friday, an important religious holiday in all three countries, as persistent hot, dry conditions challenged efforts to contain the blazes.

Southern Europe is experiencing one of its worst wildfire seasons in two decades, with Spain among the hardest-hit countries.