The U-shaped platform is attached to a cliff face on Yuntai Mountain, Henan Province, and opened to the public on September 20, the Daily Mail reported.
A spokesperson for the Yuntai Mountain tourism bureau told People's Daily Online that the cracks occurred after a tourist dropped a stainless steel mug on the walkway. However, he said only one out of the three layers of glass broke, so the tourists were not in danger, the Daily Mail reported.
"Only one of a total of three layers of glass broke, so the tourists were not in danger," the spokesman said.
The bridge was closed to the public after the incident.