Parents making their teenage daughter’s bed this week found a dead newborn that appeared to have been carried to full term, police in Chula Vista, California, confirmed Wednesday.

Officers were called to a home on Main Street after 8 p.m. on Monday. The home is located east of Hilltop Drive and west of Interstate 805 in San Diego County.

Someone from the home called 911 to report a non-breathing child.

"The parents of that minor found that child deceased in the bed anywhere from 24 to 36 hours later and called us," CVPD Lt. Fritz Reber said.

Investigators say the family found the newborn boy while making a bed. Reber said the 7-pound, 8-ounce infant appeared to have been carried to full term.

After interviewing the residents' 17-year-old daughter, police said the teenager gave birth to the child 24 to 36 hours before the 911 call was made.

The teenager said she was unaware she was pregnant and unknowingly gave birth to the child while in bed, according to a police news release.

The cause of the infant's death wasn't immediately known.

Chula Vista Police and the San Diego County Medical Examiner's Office are investigating the newborn's death to determine if a crime has occurred.