At least 28 injured in July 4th fireworks accident in Simi Valley, CA

[Warning: video may be disturbing to watch]

28 or more people received minor to severe injuries on Fourth of July night when fireworks exploded sideways, shooting into the crowd at an Independence Day celebration in Simi Valley, CA. The incident happened just two or three minutes into the pyrotechnics show.

One witness shot a video, above; you can hear him screaming, "Run! Run!"

The Los Angeles Times reports that "Police Commander Stephanie Shannon said there is no indication of foul play and that the explosion appears to be an industrial accident." [via @nycjim]