Disruptive visitors at London Zoo's Lates parties have been accused of putting animals at risk.
Concerns have been raised about the welfare of animals at the zoo after a man was thrown out for pouring beer over a tiger, the Guardian reports.
In another incident at a Zoo Lates party, a man stripped off and tried to enter the penguin pool.
Two years ago, the snakes had to be moved from their glass enclosure after the glass was cracked by a group of visitors.
A source told the Guardian: "If an animal escaped, it would be catastrophic."
The newspaper reports that on one evening in July, a journalist saw crowds shouting in the gorilla area where there is a sign asking visitors to be quiet. Staff intervened, but only when flash photography was used.
Will Travers from the Born Free Foundation told ITV News that he believes a party in a zoo, with alcohol, is completely incompatible with animal conservation.
According to the Daily Telegraph, a zoo spokeswoman said that animal welfare is a priority.
She added: "We think the 225,000 visitors to Zoo Lates over the past five years have generally shown the respect for animals that we expect – and the very few exceptions have been shown the door."
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