article_snippet: Scroll down for video .
article_snippet: The footage shows debris continuing to crash on the floor as workers shout to the men at the top of a hole (left.
article_snippet: the men continue to whistle and inspect the damage as dust settles around the men.
article_snippet: Carlo Apodaca, a trade union worker, said it was only by chance none of the men were hit.
article_snippet: The footage was captured by two of the men, who are currently helping to build the future Plaza Egana metro station.
article_snippet: Local council officials responsible for checking safety said Local council officials responsible for checking safety will compile a report after receiving the complaints.
article_snippet: The Santiago Metro is South America's most extensive metro system with five lines, 108 stations, and 103 kilometres (64 miles) of track.