Two men fishing in a creek found the dogs, some of which had been skinned, 10TV News reported. One of the dogs appeared to have been shot.
"It's sickening to think someone could do this," said Joni Dailey with the Humane Society of Logan County.
Local firefighters were assisting Humane Society officials in recovering the dog carcasses, which came from more than one breed. Several of the dogs appeared to have been greyhounds.
Those recovering the carcasses from the creek wore facemasks to protect themselves from the smell.
"I've just never seen anything like this, and I've lived in Logan County all my life," said Bret Holcomb with the Humane Society. "I don't know why anyone would want to do what they did to these dogs."
Humane Society officials returned to the creek, located in a rural area about five miles outside of Bellefontaine, to search for more carcasses on Tuesday. None were found.
The carcasses were transported to Columbus, where technicians with Ohio State University and the Capital Area Humane Society were to examine them in hopes of figuring out how the dogs were killed, and who were the dogs' owners.
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