Distressing videos circulating online show a construction worker dangling high in the air from a crane load at a downtown Toronto construction site.

One 54-second snippet of video, apparently recorded from the point-of-view of another worker, was posted to Reddit on Wednesday morning.

A witness standing off-camera can be heard saying: “Oh my God, how the f–k did this happen?” 

Videos of the same occurrence recorded from different angles were also being shared on other social media channels.

Warning: Video includes strong language

The worker in the video is employed by PCL Constructors Canada as a rigger, responsible for ensuring loads of materials are securely fastened before