Two horses believed to have been shot in separate incidents this week were not struck by gunfire after all, according to the Charleston County Sheriff’s Office.

On Wednesday, deputies were called to a Brownswood Road home on Johns Island to investigate a report of an 18-year-old horse being shot and killed. A small slit on the muzzle of the horse was found, but it was not determined to be a gunshot wound.

Deputies responded to a second report of a horse shooting Thursday afternoon on James Island’s Dills Bluff Road. A 7-year-old horse had been found on its side bleeding from the left side of its neck.

A veterinarian examined the horse, however, and determined the wound did not appear to have been caused by a bullet, deputies said. No shell casing were found in the pasture.

Charleston County sheriff’s Capt. Mike Stanley said investigators have not determined what caused the horse injuries, but the incidents don’t appear to be related.