HESSTON, Kan. (AP) — Authorities in central Kansas’ Harvey County say three people have been found shot to death outside a rural home, and investigators located an unharmed 18-month-old child inside the residence.

Sheriff Townsend Walton says the bodies were found Sunday night near Hesston after a passing motorist reported seeing bodies on the home’s driveway. Walton says he believes the shootings happened earlier that day.

Walton says the victims were a man in his 50s, and a woman and man in their mid-30s. Their names have not been released.

The sheriff says the case is being investigated as a homicide.

There was no immediate word about any arrests or charges.

The Kansas Bureau of Investigation is assisting in the probe.