Some kind of wild animal is roaming the neigborhoods in Chino Hills, California, a Southern California suburb located near some undeveloped canyons and hills. Those who have seen the animal claim that it resembles a coyote, but about 20 pounds heavier.

Witnesses claim the beast is lightning fast and capable of jumping 6-foot fences. Two dogs were found dead and residents said five pets are missing.

Among the dogs killed was a Labrador Retriever. Wildlife Officer David Taber says that residents have described it as gray and white and big, anywhere from 60 to 80 pounds.

Taber said residents living near Chino Avenue and Peyton Drive have been reporting attacks and sightings since early January. One sighting was reported on an elementary school playground.

"It's a possbility that it could be coyote-dog or what we call a coydog," Taber added.

A coydog is the hybrid offspring of a coyote and a feral dog.