An investigation by the Calgary Zoo determined a 2-year-old female western lowland gorilla named Eyare died from "human error."

A 2-year-old female western lowland gorilla died at the Calgary Zoo after sustaining head injuries from the closing door, zoo officials said. This marks the third accidental animal death due to human error in recent years at the zoo.

Eyare, a 2-year-old western lowland gorilla, died last week after being struck in the head by a hydraulic door a staff member accidentally activated, the zoo said in a statement Wednesday. The worker was trying to separate Eyare from other members of the gorilla troop for a solo training session.

A Calgary Zoo staff member mistakenly activated a door that struck the western lowland gorilla named Eyare, a report found.

The Wilder Institute/Calgary Zoo in Canada attributed the tragic death of a 2-year-old western lowland gorilla, Eyare, to human error.