A bear, which also broke out of the Eifel Zoo in Luenebach, was shot dead. Residents in the area have been advised to stay indoors while a hunt is under way for the big cats.
Big cats in evolutionary arms race with prey, according to new study
Owned by the Wallpott family, the zoo located close to the border with Luxembourg is home to around 400 animals, including a Siberian tiger and lions.
Friday's escape came two years after another similar case in eastern Germany, when two lions broke out of their cages at the Leipzig zoo.
One of the lions was shot dead while the other was eventually brought back into captivity.
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