There may not be any confirmed dead, so far (by 5:30 PM
) about 12-14 have been sent to hospitals, so possibly the rest are missing or just unaccounted for.
Apparently this is a natural gas fired electric power plant under construction. A 'purge' of a line for the natural gas was in progress and something went wrong in the procedure causing the explosion. A significant part of the structure has collasped and may be were some are trapped under.
Like an airline accident, I would presume this will be throughly investigated by OSHA and other Federal as well as state agencies, what happened will be plausable determined and the info used to prevent another like situation/disaster.
A group of people go to their job today and are either dead or hurting bad. As terrible situation for their families and the community.