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A massive fire has broken out at Chester Zoo, sparking an evacuation.
Shocked visitors have had to leave the zoo in Cheshire, which is home to more than 21,000 animals including endangered species.
The blaze took hold in the popular attraction's Monsoon Forest habitat, which houses Sumatran orangutans, macaques and crocodiles.
It is described as "the largest indoor zoo exhibit in UK history" - with specialist teams working to move all animals away from the fire.
The fate of the creatures in the enclosure is currently unknown.
One eyewitness, David Clough, said high winds fanned the flames in the inflatable roof of the building, adding: "We were very worried for the people and animals that would have been in the building."