Man found dead in car with 2 flat tires at Death Valley National Park amid extreme heat

A 65-year-old California man was found dead in his car in Death Valley National Park, officials said Wednesday.

Authorities from the National Park Service said in a news release that the unidentified man's death appears to have been caused by extreme heat. On Sunday, the day before the man was found dead, the high temperature was 126 degrees Fahrenheit, the park said. The overnight low temperature was 99 degrees Fahrenheit. 

An initial investigation suggests that heat-related illness may have caused the driver to run off road, the National Park Service said.