A kitten has been stolen from a Washington Humane Society adoption center, officials said.

Callista, a kitten who is about 8 weeks old, disappeared late Sunday afternoon at the Humane Society’s adoption center on New York Avenue NE, officials said. The organization is offering a $1,000 reward for the kitten’s safe return and/or the identification of the thief or thieves.

“It’s hard to believe someone would stoop so low and do this,” Scott Giacoppo, the organization’s vice president of external affairs, said in a statement. “Our adoption process is so easy, it only takes a few minutes and in the end your pet is completely vaccinated, spayed or neutered and you have a long-term relationship with our organization in case you ever need help.”