The zoo's panda exhibit will be closed "until we're confident that Mei Xiang is safe and healthy, " Kelly said.

CNN: Panda cub dies at Smithsonian's National Zoo

He's not an exhibit in a petting zoo.

FORBES: The Mac That Fell To Earth

Friday when he jumped out of the rail car, "clearing the exhibit's perimeter fence" and landing in the den, according to Bronx Zoo Director Jim Breheny.

CNN: NYPD: Tigers' den jumper not drunk or crazy

The exhibit is called Tiger Mountain and houses Siberian tigers as well as Malayan tigers, according to the Bronx Zoo's website.

CNN: Tigers' den jumper wanted 'to be one' with beast, police say