(AP) - A man was mauled by a 400-pound tiger at the Bronx Zoo on Friday after he leaped from a moving monorail train and plummeted over a protective fence.

The man was alone with the tiger for about 10 minutes before he was rescued by zoo officials, who used a fire extinguisher to chase it away. He suffered bites and punctures on his arms, legs, shoulders and back and broke an arm and a leg.

Zoo director Jim Breheny said the man was lucky to escape the tiger's clutches.

"If not for the quick response by our staff and their ability to perform well in emergency situations, the outcome would have been very different," Breheny said.

The tiger mauling happened at around 3 p.m. in the Wild Asia exhibit, where a train with open sides takes visitors over the Bronx River and through a forest, where they glide along the top edge of a fence past elephants, deer and a tiger enclosure.

Passengers aren't strapped in on the ride, and the man apparently jumped out of his train car with a leap powerful enough to clear the 16-foot-high perimeter fence.

The man was mauled by an 11-year-old male Siberian tiger named Bashuta, which has been at the zoo for three years. After zoo staff chased the tiger off, the man was instructed to roll under an electrified wire to get to safety, Breheny said. Zookeepers then called the tiger into a holding area, he said.

The 25-year-old man was conscious and talking after the mauling, Breheny said. Police said he was hospitalized in critical condition, which has now been upgraded to stable condition. Officials believe he was visiting the zoo by himself.

"When someone is determined to do something harmful to themselves," Breheny said, "it's very hard to stop that."

The Bronx Zoo, one of the nation's largest zoos, sprawls over 265 acres and contains hundreds of animals, many in habitats meant to resemble natural settings. Its exhibits include Tiger Mountain, Congo Gorilla Forest and World of Reptiles.

The tiger that mauled the man was returned to a holding area where it usually sleeps at night and will not be euthanized, zoo officials said.

"The tiger did nothing wrong in this episode," Breheny said.

There are 10 tigers at the Wild Asia exhibit, but Bashuta was the only one on display at the time. There are no surveillance cameras in that area of the exhibit.

Zoo officials said they would review safety procedures but believe this was a highly unusual occurrence.

"We review everything, but we honestly think we provide a safe experience," Breheny said. "And this is just an extraordinary occurrence ... somebody was deliberately trying to endanger themselves."

To watch news conference on The Bronx Zoo tiger attack, click on News 12 Extra on Optimum TV channel 612.