PHOENIX -- A man in his 60s is the first death because of heat-related illness in Maricopa County this year.
Maricopa County Department of Public Health officials say the man also had underlying health conditions.
They say he was found in his home in early June without functioning air conditioning.
The man's name and city where he resided weren't immediately released.
According to the Centers for Disease Control and Prevention, more people die in the U.S from heat than from all other natural disasters combined.
People suffer heat-related illness when their bodies are unable to compensate and properly cool themselves.