In an attempt to stop the attack, Zhang said that he "...bit the panda on its back but its fur was too thick." Zoo officials sedated Gu Gu by spraying him with water. Zhang was hospitalized after the incident.
Zhang attempted to stop an attack by biting the panda, but the panda's thick fur prevented him from succeeding. Zoo officials used water to tranquilize the panda, and Zhang was hospitalized as a result of the encounter.