Mum's 911 call after boy fell into gorilla enclosure released

The hysterical pleas of the mother of a boy who fell into the gorilla enclosure at Cincinnati Zoo have been heard for the first time.

Audio of Michelle Gregg’s 911 call as her three-year-old son was being dragged around by 200kg silverback Harambe reveals her pure terror in the moment.

“Hi — my son fell in the zoo exhibit at the gorillas!” mother Michelle Gregg shouts incoherently at the operator.

“At the Cincinnati Zoo,” the mom tries to clarify, before starting again.

“My son fell in with the gorilla,” she says.

“There’s a male gorilla standing over him. I need someone to contact the zoo, please.”

The operator then tells Ms Gregg someone help is already on its way.

“Ok, we do already have it started — we do already have help started there, Ok?” the female operator says.

The operator then tries to ask how old Ms Gregg’s son is, but is cut off when the mother yells out to her son: “Be calm”.

“Be calm. Be calm,” she repeats, sounding frantic.

“He’s dragging my son,” Ms Gregg then suddenly yells.

“I can’t watch this. I can’t. I can’t. I can’t watch,” she says.

With that the call ends and within minutes zookeepers shoot the endangered gorilla, Harambe, dead.

Earlier this week, Ms Gregg released a statement on Facebook confirming her son Isaiah Dickerson had been released from hospital and was doing fine.

She and her partner Deonne Dickerson – who have three other children together - have become the subject of a fierce online hate campaign accusing them of neglect for allowing Isaiah to climb the zoo’s barrier unnoticed.

Local police have announced they will be investigating the parents’ role in the tragic incident, including looking at possible criminal charges.