An aerial view of the Kleen Energy Systems plant, where an explosion took place earlier today, is se
Enlarge Douglas Healey/Getty Images

After the explosion.

An aerial view of the Kleen Energy Systems plant, where an explosion took place earlier today, is se
Douglas Healey/Getty Images

After the explosion.

The latest news about the huge explosion Sunday at an under-construction power plant in Middletown, Conn.:

About five people remain unaccounted for after a deadly explosion at an under-construction power plant, and a section of the site was too unstable to search, a fire official said Monday. Sunday morning's blast at the Kleen Energy Systems plant in Middletown, about 20 miles south of Hartford, killed at least five people and injured a dozen or more others. It happened as workers were clearing gas lines of air. (Associated Press)

The Hartford Courant adds that:

As rescuers work to determine how they can safely search an unstable section of the Kleen Energy plant, state and Middletown police detectives are trying to come up with a list of workers who were at the plant when it was damaged in an explosion Sunday.