Authorities are investigating the deaths of two people who were found outside in the frigid weather Tuesday.

A man was found in a field across the street from a Gaffney homeless shelter as temperatures dropped into single digits.

Cherokee County Coroner Dennis Fowler says a cab driver discovered the man just before 8 a.m. Tuesday.

The man's name hasn't been released.

Fowler says the man was brought to the Harbor of Hope shelter at around 5:30 p.m. Monday after being discharged from a medical center, where he told attendants he didn't have heat in his home. Fowler said an autopsy had been scheduled for Wednesday morning to help determine if the man died from a medical condition prior to hyperthermia.

And in Spartanburg County, the coroner is investigating the death of a 56-year-old woman who was found outside a home in Una.

Coroner Rusty Clevenger says that the body of Norma Jean Sanders was found on Tuesday.

Clevenger says Sanders had apparently been out all night in the cold. She lived on the street where she was found, but Clevenger says Sanders wasn't found in her own yard.

Clevenger says that he is still trying to figure out if factors in addition to the cold contributed to Sanders' death.