The boy is believed to have woken up alone after his grandfather left his home temporarily to run an errand. When he woke up, he is then thought to have fallen from the window while looking for his grandfather.
Crowds gathered after hearing the boy screaming and rescuers were able to save him. Firefighters were able to use a hydraulic pressure expander to force the bars apart and pull him back into his apartment.
One witness said: "The only thing stopping him from plunging to the ground below was the fact his head was trapped between two window bars."
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