An investigation is underway at an animal rescue in Northern California. Authorities have been excavating the property for several days, uncovering mass graves and decomposing animals. The investigation is related to shelter dog deaths.

Dozens of animal remains have been recovered so far. The sheriff's office has released a statement regarding the situation, but details are limited. For more information on the expanding investigation, readers can refer to the original statement from the sheriff's office or follow updates from local news sources.