Blow-down test ignites fatal blast at plant
At least 12 people were injured in the explosion at the Kleen Energy Systems plant in Middletown, about 30 kilometres south of Hartford. Crews with dogs are still searching the rubble.
Deputy Fire Marshal Al Santostefano said nobody was believed to be unaccounted for.
The 620-megawatt plant is being built to produce energy primarily using natural gas. Santostefano said workers for the construction company, O&G Industries, were purging the gas lines, a procedure he called a "blow-down," when the explosion occurred.
Officials had not released the conditions of the injured but said some were considered very serious.
A spokesman with the U.S. Chemical Safety Board said the agency is mobilizing an investigation team from Colorado and should have the workers on the scene already.
Related News

End of an Era: UK's Last Coal Power Station Goes Offline
LONDON - The United Kingdom marks a historic turning point in its energy transition with the closure of the West Burton A Power Station in Nottinghamshire. This coal-fired power plant, once a symbol of the nation's industrial might, has now delivered its final watts of electricity to the grid, signalling the end of a coal-power generation in the UK.
A Landmark Shift Towards Clean Energy
The closure of West Burton A reflects a dramatic shift in the UK's energy landscape. Coal, the backbone of the UK's power generation for decades, is being phased out in favour of renewable…