Authorities say work has halted at a Facebook building under construction in California after an equipment failure caused part of the structure to collapse, injuring two workers.
KNTV reports that the construction workers were injured Wednesday evening after falling about 40 feet (12.19 meters) while assembling the structure's steel framing. Fire officials say a steel beam they were standing on dropped nearly 20 feet (6.1 meters), catching on a lower floor assembly and catapulting them toward the ground.
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Both men were transported to a hospital.
Chief Harold Schapelhouman says that it's a miracle the workers survived and that their safety harnesses likely saved them.
The accident is under investigation by state safety inspectors.
Information from: KNTV-TV.