A 15-month-old female gorilla was fatally injured at the San Francisco Zoo when she became trapped under a closing hydraulic door, the zoo said Saturday.

The zoo staff was moving animals from their enclosures to their night quarters Friday when the western lowland gorilla named Kabibe — or “little lady” in Swahili — darted under the closing door, the zoo said in a news release.

The zoo said its primate staff was close to Kabibe, having provided round-the-clock postnatal care for the gorilla during the first six months of her life.

The zoo described the incident as a “tragic accident” and said it will review procedures to determine whether changes are necessary.

Click here to read other stories on LATimes.com. 

Correction: The story originally misreported the gorilla’s age. It has since been updated. 

The following is raw video of Kabibe posted by KTVU on Dec. 21, 2013.