Middletown blast: 'Mass casualties' at US power plant
A huge explosion has rocked a power plant in the US state of Connecticut, with US media reporting at least two people killed and many more injured.
People living several miles from the plant reported that their homes were shaken by the blast at the Kleen Energy plant, being built in Middletown.
Black smoke could be seen pouring out of the plant site shortly afterwards.
A receptionist at nearby Middlesex Hospital told local media it was receiving victims from the explosion.
The Middletown Press newspaper said a gas pipeline had exploded at about 1100 (1600 GMT), and that flames were seen shooting out of it at one point.
Locals said hundreds of people might have been working at the plant, under construction on the Connecticut river to the south of Middletown, when the blast happened.
One witness told the Hartford Courant a test of the plant's power generating systems was being carried out.