Coal plant explosion in central Wisconsin - WKOW 27: Madison, WI Breaking News, Weather and Sports

Coal plant explosion in central Wisconsin

ROTHSCHILD (WKOW) -- One person is injured after a coal explosion at the Weston Power Plant.

The cause is still under investigation, but Wisconsin Public Service Corporation said one of the three coal mills on site at exploded after becoming overpressurized.

The mill produces electricity by crushing coal and burning it.

One person was treated for minor injuries at an area hospital

Three other units at the plant were not affected.

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