Autopsy: Hyperthermia killed Child left in hot SUV

In this undated photo released by the Cobb County (Ga.) Sheriff's Department, Justin Ross Harris poses for a photo. Harris, 33, accused of leaving his 22-month-old son in an SUV on a hot day returned at lunchtime to put something in the vehicle, where the child was strapped into a seat in the back, according to an arrest warrant filed Tuesday, June 24, 2014. (AP Photo/Cobb County (Ga.) Sheriff's Department)
In this undated photo released by the Cobb County (Ga.) Sheriff's Department, Justin Ross Harris poses for a photo. Harris, 33, accused of leaving his 22-month-old son in an SUV on a hot day returned at lunchtime to put something in the vehicle, where the child was strapped into a seat in the back, according to an arrest warrant filed Tuesday, June 24, 2014. (AP Photo/Cobb County (Ga.) Sheriff's Department)

MARIETTA, Ga. (AP) — A medical examiner in Georgia says hyperthermia was the cause of death for a toddler left for hours in his father’s SUV.

The Cobb County Medical Examiner’s Office says in a news release that toxicology results are still pending but that it believes the cause of death was hyperthermia and the manner of death was homicide.

Hyperthermia is a condition in which the temperature of the body spikes due to the heat.

The boy died on June 18 after his father, 33-year-old Justin Ross Harris, left him in the hot car for several hours.

Harris faces a murder charge.