Videos of the scene posted on social media show a camera that appears to be at least 6 feet long crashing down to the plaza near the main Olympic basketball arena. Another shows two women seated next to the downed apparatus, one of them with a bloody nose.

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OBS said in a statement that a rope used to pull the camera came down around 1:30 p.m. local time and a team was sent to investigate. The camera was suspended about 30 feet above a concourse at the time and had two support ropes still attached. While repair crews awaited the arrival of a cherry picker, both ropes snapped and sent the camera down approximately 65 feet to a lower concourse.

Officials said seven people suffered “minor injuries” as a result of the incident and an investigation has been launched.

The area where the camera fell was later cordoned off and guarded by security officials.