Investigators are trying to determine what sparked a house fire where an 83-year-old woman was found dead.
The fire broke in the 10800 block of Donna Drive, just outside the West Sam Houston Tollway in the Cy-Fair area, around 2 a.m. Friday.
The grandmother who was killed lived inside the home alone and had limited mobility, fire officials said. A dog was also killed in the fire.
A neighbor called 911 after they saw the flames and smoke early Friday morning.
The Cy-Fair Fire Department responded to the scene, along with the Harris County Sheriff's Office.
Fire officials worked quickly to put the fire out, and when they forced entry into the home, they found the body of the 83-year-old woman.
Officials said the victim's son runs his pest control business out of the house. There are people at the home during the day, but the grandmother stays there alone at night.