A 700-pound Siberian tiger named "Rambo" attacked and killed an employee at the Houston Zoo Thursday morning, fire department officials said.

Ricrido Tovar, 60, was killed after the tiger apparently crashed through a 5- to 6-inch thick glass window that was part of his cage, said Howard Shaw, a Houston Fire Department paramedic called to the scene."Either the guy was inside the cage or the tiger was outside and pulled him inside," Shaw said. "It cut him up and ate him up pretty good."

Shaw said Tovar, a 30-year employee of the zoo, was found by a co-worker about five minutes after the attack this morning. Shaw said the animal ran back into its cage. He believes the tiger has not been shot.

Houston Zoo and city officials would not immediately comment on the death.