OAKLAND, Calif. (KGO) -- The Oakland Zoo is insisting its grizzly bear exhibit is safe.
The declaration comes after a child threw a rock, several times, at the window on the exhibit, shattering the laminate cover on the glass.
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Zoo officials say the glass itself was not compromised and the exhibit is still safe and the bears, secure.
The repairs will cost about $67,000, and will force the closure of the exhibit next month.
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Zoo officials say they were unable to determine who was responsible.