FALLBROOK, Calif.—San Diego County sheriff's deputies are trying to determine whether eight American bulldogs were responsible for the death of a 30-year-old woman whose bloodied body was found in a backyard of a home she was house-sitting.

Investigators say the woman was found Sunday at a home in Fallbrook by her cousin who went to check on her. The woman, whose name hasn't been released, had been house-sitting for the owners of the home while they were out of town.

Sgt. Victor Perry said the woman's injuries were consistent with dog bites, but a cause of death wouldn't be known until an autopsy was completed.

The dogs were taken from the home by animal control officers.