BEVERLY, Ohio (AP) - An explosion that happened Monday while workers were unloading a coolant used for steam generators rocked an electricity-generating plant in southeast Ohio, killing one person and injuring about a dozen others, authorities said.
It was not clear what exploded during the unloading, said Melissa McHenry, a spokeswoman for American Electric Power. The coolant is used on steam generators at the coal-burning plant along the Muskingum River, she said.
Washington County Sheriff Larry Mincks previously said a boiler exploded, but it was unclear whether that was the case.
"A spark triggered an explosion of some type while a truck was being unloaded. We're not able to say if the truck exploded or a boiler exploded," he said.
The blast happened about 9:20 a.m. at the plant were 210 people work.
Two hospitals in nearby Marietta were treating a total of four people from the plant by late morning, but hospital officials had no information yet about the extent of their injuries.