A cat was found inside a traveler’s checked luggage at New York’s John F. Kennedy International Airport last week, the Transportation Security Administration said.

The TSA confirmed its “hiss-toric find” on Twitter Tuesday. In an image shared by the agency, the cat’s outline can be seen in an X-ray of the luggage. Another photo shows a tuft of orange fur peeking out of the suitcase’s zipper.

Spokesperson Lisa Farbstein told USA TODAY Wednesday morning that a TSA officer found the orange cat after the bag “triggered an alarm” while going through the standard X-ray screening for checked luggage on Nov. 16. The officer then saw the surprising X-ray image.

The TSA retrieved the cat, which was alive. The agency notified Delta Airlines, the carrier that the individual was traveling with, and the police, Farbstein said. The traveler was asked if he knew about the cat.

“From the sound of it, this was… unintentional,” Farbstein said, noting the traveler said he was unaware of the cat being in his luggage.

Meet Clark: 19-year-old bald eagle spotted traveling through airport security  

More:Florida TSA searched a traveler’s chicken at the airport. They found a gun inside.