Filed under: Travel News
An elderly man also needed medical attention after being locked in the tropical house in 100-degree heat as the chimps roamed outside.
Police surrounded the zoo with orders to shoot any of the chimpanzees if they tried to leave the compound.
But, as zoo spokeswoman Simone Hagenmeyer told ninemsn.com, four out of the five chimps "had a quick look around and then jumped pretty quickly back into their compound."
According to the Daily Mail, she added: "The fifth and oldest chimp went off to visit the head gorilla.
"He was a bit harder to coax back.
"He's getting on a bit so we gave him a ladder to climb back into the enclosure."
Meanwhile, over in Las Vegas, two chimpanzees went on a rampage through the streets after escaping from their owner's back garden.
One was shot and killed, while one was tranquillised after they were said to have been displaying aggressive behaviour.
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