Updated

Authorities in Northern California are investigating how the bodies of two infants or fetuses ended up in a storage unit.

The Placer County sheriff's office says a woman called authorities Nov. 25 to report an odor coming from the abandoned storage space in the city of Colfax, about 40 miles northeast of Sacramento. She had just purchased the contents of the storage unit at auction.

The Sacramento Bee reports deputies found the decomposing remains of a fetus or infant in a container, and a deputy coroner confirmed the remains were human. Later, a second fetus or infant was discovered in the container.

Sheriff's officials say detectives have interviewed a woman believed to be the mother. They're waiting for the results of forensic and toxicology tests before determining how to proceed.