Authorities in eastern Pennsylvania are asking the public to be on alert for dog treats stuffed with fish hooks following their disturbing discovery along a portion of the Appalachian Trail over the weekend.

The potentially deadly treats were found by hikers on Sunday scattered along a trail northwest of Allentown in Washington Township, State Game Warden Dustin Stoner with the Pennsylvania Gaming Commission told HuffPost.

They were intentionally pushed down into that soft core of the treat, kind of embedded in the treat, and it wasnt just one, it was multiple hooks in each treat, he said Wednesday. Its a very disturbing incident, obviously its something that we take very seriously.

The Pennsylvania Game Commission shared a photo of the treats on Facebook Monday.