VIDEO: Building floor collapses, injuring 77 people

Jakarta, Indonesia (CBS) - Amateur footage obtained by the Associated Press shows the moment a mezzanine floor inside the Jakarta Stock Exchange tower collapsed on Monday, injuring nearly 80 people and forcing a chaotic evacuation.

A group of people plunged several meters to the ground as the structure gave way beneath them.

National police spokesman Setyo Wasisto said most of the injured were college students from Palembang in Sumatra who were visiting the stock exchange as part of a study tour.

Wasisto ruled out any militant attack as a cause of the collapse.

"There is no bomb element in the incident", he said.

Figures released by five hospitals showed 77 people were injured.

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