Mother of boy who fell into gorilla enclosure before it was shot dead says 'accidents happen'

The director of the Cincinnati Zoo says it remains safe for its 1.6 million annual visitors despite a weekend tragedy in which a gorilla was fatally shot to protect a four-year-old boy who had entered its exhibit.

Update - 3pm: A woman claiming to be the mother of the boy who fell into a gorilla enclosure in Cincinnati Zoo, leading to the animal's shooting has said that "accidents happen".

Michelle Gregg, broke her silence saying people were too quick to judge parents.