Investigation continues into what caused scaffolding collapse in Fort Worth

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The investigation continued Thursday into what caused a scaffolding collapse in downtown Fort Worth a day earlier.

Investigators used a drone to survey damage caused by the collapse while workers were resurfacing exterior brick work on the building, which is owned by Sundance Square Management.

MORE: 3 injured after scaffolding elevator collapses in Fort Worth

The falling construction equipment critically injured a woman on the sidewalk and left a construction worker dangling from a safety harness.

The worker was able to get to safety.

No further details were released on the woman's condition.