KEY WEST — Authorities say an inmate at a Florida Keys jail fed iguanas, including one considered a pet, to an alligator at a small zoo run by the jail.

The Miami Herald reported that the Monroe County jail inmate, Jason Aaron Gibson, was charged Monday with animal cruelty. He was already being held on a vehicle theft charge.

Another inmate told deputies he was feeding a sloth Sunday when he heard a thump and saw Gibson tossing an iguana named Mojo into the alligator pen. The 6-foot-long alligator chomped down on Mojo and dragged him off.

Deputies learned Gibson tossed another iguana to the alligator last month.

The Monroe County Sheriff's Office Animal Farm houses about 150 confiscated or abandoned animals.

It's unclear whether Gibson has an attorney who can comment.