Jolie Lee

USA TODAY Network

The San Francisco Zoo's baby gorilla, Kabibe, died Friday after trying to dart through a closing hydraulic door.

The zoo describes the death as a "rare accident," according to the zoo's website.

The door's custom-made, manual shut-off switch was working properly when tested after the death, reports The San Francisco Chronicle.

Kabibe was born in July 2013 into captivity and was among seven gorillas living at the zoo.

Kabibe was one of the biggest draws for zoo visitors, according to the zoo website.

Her mother had not bonded with the baby at first, and Kabibe required four months of human care after her birth before she was introduced to her grandmother.

The San Francisco Zoo has previously faced tragedy when a tiger escaped its enclosure on Christmas Day 2007 and killed a 17-year-old boy. The U.S. Department of Agriculture fined the zoo $1,875 for flaws associated with the enclosure.

This isn't the first zoo animal death by hydraulic doors.

In 2005, a macaque monkey was struck on the forehead while running through a hydraulic door, The Washington Post reports. Federal investigators ordered zoo officials to rewrite operating procedures and make preventive repairs to the doors, the Post reports.

In Canada, a capybara, a type of rodent, died at Calgary Zoo in 2009. An outside audit found other examples of animal injuries and deaths at the zoo, reports CBC News.

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