Baby Found Dead Inside Okla. Washing Machine

Updated at 1:11 p.m. ET

Oklahoma authorities have launched a death investigation after finding the body of a 10-day-old baby in a washing machine.

Bartlesville Police Chief Tom Holland said Friday it appears the infant had been through a wash cycle in the machine. He says no arrests have been made but several search warrants have been issued.

Holland said police responded to an emergency call Thursday night from a woman who said her baby was dead and her aunt had killed the child. He says the conversation in the background "sounded like fighting or shoving."

Holland said the baby had died by the time officers arrived.

CBS News affiliate KOTV-TV in Tulsa reports that Holland said in his 40 years of police work he had never seen or heard of anything like this.

The aunt told police officers she came over to the family's apartment and found the mother asleep, KOTV-TV reports. She said she heard a funny sound coming from the washing machine and went to check it out, finding the baby inside.

The child has not been identified. The body has been turned over to the state Medical Examiner's office.