Absolutely gut-wrenching video of the Indiana State Fair concert stage collapse from last night. Reports indicate a freak wind burst and sudden weather may be partially to blame, and that the concert was delayed at the time.

It goes without saying that our hearts go out to the victims of this awful, awful incident.

Update: There are a now-confirmed five dead and 40-plus injured (including a rumored paralysis). We'll bring you any major updates as they occur. Editor's Note: Labeling this an engineering accident was short-sighted and the post has been updated to reflect that fact. -j.l.

Update 2: Many Gizmodo commenters have duly noted that audience members who were not injured in the collapse are running toward the accident. Even seconds after this disaster unfolded, there were brave men and women sprinting toward potential danger to help others.
[AP, Reddit, YouTube User JSilas]