SPOKANE, Wash. -

The discovery of a pit bull tied to a dumpster covered in blood in Spokane Valley has SCRAPS investigating possible dog fighting in the area.

A SCRAPS officer was sent out on a call to Trentwood Elementary in Spokane Valley on Tuesday where she found the brown pit bull tied to the dumpster.

Animal Protection Officer Emylee Tolliver described the scene as horrific, and observed that the dog had both old as well as new injuries, indicating the animal may have been involved in a series of dog fights.

"It was a pit bull but it didn't deserve this," said SCRAPS director Nancy Hill. 

"This was not just a case of a lost dog tied to a dumpster," Tolliver said, "This was intentional."

The dog was taken to a veterinarian, who found the injuries that could have been from previous fights. The dog had bite marks on its neck and tongue. SCRAPS officers also said the drain next to the dumpster where the dog was tied was stained red. 

"We felt there was sufficient blood for there to be a second dog which also may be severely wounded or dead," said Hill

Pictures Tolliver took at the dumpster were given to the vet, who determined that a second dog may have been at the dumpster and bled out.  However, no other dog has been found. 

Due to the injuries of the original dog, the dog had to be euthanized.

SCRAPS could press animal cruelty and fighting charges against anyone found responsible for the dogs injuries. Both charges are considered class C felonies.

SCRAPS is asking any persons with information to please call them immediately at (509) 477-2532. The Humane Society of the United States supports SCRAPS in its investigation and is offering a $2,500 reward for information leading to the arrest and conviction of animal cruelty.