Georgia ? A former college professor and his wife were apparently attacked and killed by nearly a dozen dogs along a rural northeast Georgia road where their bodies were found mutilated, authorities said Monday.

Preliminary autopsy results from the Georgia Bureau of Investigation showed Sherry Schweder, 65, likely died of injuries from a dog attack, Oglethorpe County Sheriff Mike Smith said. Autopsy results for her husband, Lothar Karl Schweder, 77, were not yet available, but Smith said it’s likely he was also attacked by dogs because the scene was so grisly.

Smith said officials were going to round up at least 11 dogs seen in the area where the couple’s bodies were found Saturday morning by five passers-by.

It wasn’t immediately clear whether the mixed-breed dogs were feral or someone’s pets. There had been no recent complaints about vicious dogs in the area, Smith said.