ST. LOUIS (AP) — Authorities in St. Louis are trying to determine if the hot weather is to blame for the death of an elderly man.

The man was found dead in his home Thursday night. He was in his mid-80s. Fire officials say the temperature inside the home was in the 90s.

The victim’s name has not been released.

St. Louis has been under a heat advisory for several days. Thursday was the fifth straight day with a heat index topping 100 degrees.