Game officials are investigating a couple of reports of mountain lion sightings in Codorus Township, but there's no evidence to support anyone actually has seen the animal, said Barry Leonard, an information and education supervisor at the state Game Commission's South Central Region office.
The range of the mountain lion, or cougar, includes mostly western states.
Leonard said officers investigated two reported sightings near a community park, but found no tracks, droppings or hair to suggest there was a mountain lion in the area.
There are no known free-ranging mountain lions in Pennsylvania, and no reports that any that have been permitted to be kept caged in the state have gotten loose, he said.
"There's no denying they're seeing something, but we don't know what they're seeing," he said.
They might have seen bobcats, which are located all over the state, or a large housecat that looked like a mountain lion, Leonard said.
He said officers will continue to patrol the areas of the sightings in the hopes of catching a glimpse of what was spotted.
"We're going to check them out, both for our interest and for public safety," he said.