Five people were killed and at least 12...
The blast occurred at the Kleen Power Plant in Middletown, near the state"s capital of Hartford, at about 11:20 a.m. local time.
CNN.com reported earlier citing a deputy fire marshal that about 50 construction workers were at the scene when the blast occurred. However Middletown Mayor Sebastian Giuliano said it is still unclear how many people were at the plant.
"What I"ve been told by the owners of the project is that there could be anywhere from 100 to 200 people working on the site on any given day," CNN.com cited him as saying.
The mayor also said that there is no threat to the public health after the blast and it is unlikely to be an act of terrorism.
"There is no present or continuing threat to anybody from either substances getting into the atmosphere or of a possible subsequent explosion," he said adding that "urban search-and-rescue teams are on the premises ... with dogs, attempting to locate and account for further victims."