SAN FRANCISCO—On Friday, October 23, the San Francisco Zoo was fined $1,750 for the accidental death of a baby gorilla last year.

The death of the 16-month-old Western lowland gorilla named Kabibe occurred on November 7, 2014. The death occurred during the nighttime hours when the animals were returning to their habitat when Kabibe managed to run under the door and was crushed to death.

The hydraulic door which crushed Kabibe was custome-made and has a full functional shut-off switch. The attendant failed to press the switch in time to save the baby gorilla. The protocol is set so that the attendant in charge is meant to have one of their hands on the emergency stop button when operating the door. The attendant, in this case, broke protocol and did not keep her hand on the button.

The attendant was defended by others who work with the primates, who claimed that the incident was the result of issues with the door and not having enough staff members to handle the situation. Representatives of the SF Zoo have stated that the ordeal is a result of human error and claimed that there was no report filed citing any maintenance issues.

Animal rights activists have argued that the fine is not enough because Kabibe was part of an endangered species list.

Kabibe is not the only animal to have had issues with the hydraulic door system that is set up at the San Francisco Zoo. A Siberian tiger managed to escape her enclosure and killed a 17-year-old teen in 2007.

The San Francisco Zoo is being fined by the U.S. Department of Agriculture for negligence.