Residents of the German town Lunebach were asked to keep all doors and windows closed as local police rounded up the roaming animals.
Residents had been warned to stay inside their homes as authorities conduct a search operation for the animals, the UK's Express reported.
Eifel Zoo has nearly 400 animals of 60 exotic and native species, including lions, tigers, and other big cats on its 30-acre site.
The cats were all located within a few hours on the grounds of the zoo in Luenebach, located near the border with Luxembourg and Belgium, police spokesman Joerg Raskopp said. Police say they are responding the situation but now have no further details.
Heavy rainstorms overnight had sparked flash floods.
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The Eifel zoo, owned by the Wallpott family, is home to around 400 animals, also including a Siberian tiger.
In 2015, an orang-utan was shot dead while on the run from the Duisburg zoo, and a bear escapee from Osnabrueck suffered the same fate in 2017.
Friday's escape came two years after a similar case in eastern Germany, when two lions broke out of their cages at the Leipzig zoo.
"That enabled multiple animals to escape".