Wildfires raging across central and southern Chile on Sunday left at least 15 people dead, scorched thousands of acres of forest and destroyed scores of homes, authorities said, as the South American country swelters under a heat wave.

Chilean President Gabriel Boric declared a state of catastrophe in the country’s central Biobio region and the neighboring Ñuble region, around 500 kilometers (300 miles) south of Santiago, the capital.

The emergency designation allows greater coordination with the military to rein in two dozen wildfires that have so far blazed through 8,500 hectares (21,000 acres) and prompted 50,000 people to evacuate, according to Chilean Security Minister Luis Cordero.

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