Boy in gorilla enclosure with animal
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Harambe gorilla killing: Zoo defends shooting

A US zoo has defended its decision to shoot a gorilla, after a four-year-old boy fell into its enclosure.

Amateur video footage shows the gorilla dragging the boy through water. The boy was treated at a hospital and released the same day.

A vigil is being held at Cincinatti Zoo by protesters who are angry over Harambe's death.

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