Three people died in three separate fires across the state this weekend.

Sioux City Police are investigating the death of a person whose body was found inside a burning car Sunday evening. The victim’s name has not been released.

A fire destroyed a house in Knoxville early Sunday. Seventy-year-old Charlene Selmyhr was outside the home when crews arrived, but she became unresponsive in a police car and died later at a hospital.

And in Cedar Rapids, 57-year-old Thomas Jones died Saturday when a fire broke out in his unit at the Shamrock Apartments. The causes of all three fires remain under investigation.