Editor’s note: Some of the photos in this story may be disturbing to some readers.

OMAHA, Neb. (WJW) — A missing dog found wrapped up in duct tape was rescued from a trash bin earlier this week, according to the Nebraska Humane Society.

Employees at the Omaha accounting firm Sweets & Associates reportedly heard an animal rustling around in the dumpster Sunday evening but assumed it was a raccoon.

The next day, they discovered a dog in terrible condition inside the bin. His fur was matted with food and dirt, and he had tape around his head, legs and tail, employees at the shelter said.

“I have never seen anything like it,” said Kevin Wiederin, one of the Sweets & Associates staff members, who made the discovery.

Omaha news station KETV reported that the dog, identified as Leo, was rescued and taken to the humane society minutes before the garbage was supposed to be collected.

Shelter employees sedated Leo and gave him a bath to remove all of the debris and gunk. Aside from some skin irritation, the humane society said the dog was in “good spirits” after waking up.

The dog’s owner had reported the animal missing April 11, and through the help of a microchip, the humane society was able to track her down.

“He’s the sweetest dog! I don’t know why anyone would do this,” his owner, Erin Pasillas, told the shelter.

Those who have any information regarding the incident are urged to reach out to Omaha Animal Control. The humane society is offering a $1,000 reward in the case.