Horrifying video of boy having arm ripped off by escalator

This is the shocking moment a young boy got his arm trapped in an escalator while his horrified mother was watching.
The four-year-old boy broke his arm while walking up an escalator that was moving in the opposite direction in Jiangxi Province, southeastern China yesterday.
His arm was fixed after several hours of surgery, however he will have to attend regular check-ups at the hospital to ensure his recovery.
Jiangxi TV posted surveillance footage from Rainbow Shopping Centre in Jingdong town of Nanchang city on June 1.
A four-year-old boy, whose name is unknown, fell on a down escalator on the third floor while his horrified mother was watching.
However, his right arm was trapped and he was unable to remove it from the machine.
His parents noticed and quickly hit the emergency stop button.
However the damage was already done. The four-year-old suffered severe bone fractures in his right arm which by this point had snapped in half.
The boy was sent to Nanchang Shuguang Hospital immediately for surgery.
His arm was successfully reattached in an operation that lasted several hours.
According to Huanqiu, an affiliation to People's Daily Online, the boy will need to be kept under observation to check his blood is circulating well.
Rainbow Shopping Centre confirmed the incident in a statement. It said that staff members took emergency measures to save the boy before he was sent to hospital, stated Jiangxi TV.