Hundreds of firefighters backed by more than two dozen water-dropping planes were battling a major forest fire raging out of control on Monday on the northern fringes of the Greek capital. A children’s hospital and a military hospital were being evacuated early Monday morning, the fire department said, while evacuation orders were issued for more than a dozen areas, including Marathon and several Athens suburbs. Authorities in nearby suburbs were opening at least one sports hall and providing rooms in hotels for evacuees. Local media reported two firefighters were slightly injured, while several civilians were treated in hospitals for smoke inhalation. The fire sent a blanket of smoke over the center of the Greek capital, darkening the sky. It began Sunday afternoon about 35 kilometers (22 miles) from Athens and was fanned by strong winds that quickly drove it out of control, fueled by tinder-dry conditions after repeated heat waves this summer, coming on the heels of a particularly dry winter. This year’s June and July were the hottest months ever recorded in Greece, which also recorded its warmest winter ever. At first light Monday, more than 500 firefighters and 16 teams of firefighters specially trained to combat wildfires were battling the flames, backed by 152 vehicles and large numbers of volunteers. Twenty-nine water-dropping planes and helicopters were being deployed in two waves. Authorities said flames at times towered more than 25 meters (80 feet) in height. The fire department appealed to residents to follow evacuation orders issued by civil protection, with authorities noting that some people who had refused to leave their homes later became trapped and required rescuing, endangering the lives of firefighters.