The boy, whose head was caught within about 4-5 inches (13 cm) of space, according to police, was identified as Charles Holt of Charlotte, North Carolina, an investigator with the Fulton County Medical Examiner's Office said.
The Sun Dial restaurant's automatic system stopped the floor's rotating motion when the child became stuck on Friday and then employees dislodged him from the tight space, Atlanta police said in a statement.
But the child was critically injured suffering from bleeding from the head and died later that day at the Grady Memorial Hospital.
A 5-year-old boy died after getting crushed at a rotating restaurant in Atlanta
The boy was having lunch at the popular tourist attraction with his mother and father.
Atlanta police Sgt Warren Pickard said: “The family was visitors to our city. They were up enjoying one of our favourite attractions, the restaurant and just things went horribly wrong.
“A small child (doesn’t) know what to do in those moments. It crushed his little, small body.”
The Sun Dial restaurant is at the top of the Westin Peachtree Plaza Hotel
Sgt Pickard said that the boy was no more than four or five feet from his parents when the accident occurred.
His death was ruled accidental and he was found to have suffered crushing injuries to his head and brain.
It took a rescue crew around 30 minutes to free the child.
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The Westin Peachtree Plaza Hotel (archive image)
The Sun Dial's website says it offers 360-degree views of the Atlanta area. It sits at the top of the 73-story cylindrical Westin Peachtree Plaza Hotel.
The hotel’s manager, George Reed, issued a statement: "Words cannot express the depths of our sorrow. Our thoughts remain with the family.”
A representative for the business said it would be closed until further notice.