SAN DIEGO (KSWB/KUSI) -- A 10-year-old western lowland gorilla at the San Diego Zoo broke a layer of protective glass in its enclosure on Saturday, zoo officials confirmed.

According to a statement from the zoo, the incident occurred when the gorilla, named Denny, broke through one of three layers of tempered glass that separates the animal from zoo visitors in the gorilla forest habitat. Another gorilla was also in the compound at the time of the occurrence.

"Denny was not injured," the zoo noted. "Both gorillas will be cared for behind the scenes until the panel has been replaced."

Zoo officials emphasized that the glass panel consists of three protective layers, and only one was compromised. No guests or staff were harmed during the incident.

The impact startled people who saw it ha

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