A firefighter douses a burned-out fire truck during a wildfire near Kalyvia in Greece, Thursday Aug. 3, 2017. Three firefighters have been hospitalized with burns and local authorities have issued an evacuation order for residents near a seaside town of Kalyvia, south of Athens, as a wildfire threatened homes in high winds. (AP Photo/Thanassis Stavrakis)

A firefighter looks at a burned-out fire truck during a wildfire near Kalyvia in Greece, Thursday Aug. 3, 2017. Three firefighters have been hospitalized with burns and local authorities have issued an evacuation order for residents near a seaside town of Kalyvia, south of Athens as a wildfire threatened homes in high winds. (AP Photo/Thanassis Stavrakis)

Firefighters work inside of a burned-out building during a wildfire near Kalyvia in Greece, Thursday Aug. 3, 2017. Three firefighters have been hospitalized with burns and local authorities have issued an evacuation order for residents near a seaside town of Kalyvia, south of Athens as a wildfire threatened homes in high winds. (AP Photo/Thanassis Stavrakis)

A firefighter works behind a burned-out fire truck during a wildfire near Kalyvia in Greece, Thursday Aug. 3, 2017. Three firefighters have been hospitalized with burns and local authorities have issued an evacuation order for residents near a seaside town of Kalyvia, south of Athens as a wildfire threatened homes in high winds. (AP Photo/Thanassis Stavrakis)