Firefighters investigated a boiler explosion at an ArcelorMittal plant in Warren, Ohio, on Saturday, February 18, the Warren Township Fire Department said.The fire department said that there were no injuries or chemical leaks reported at the plant. The plant produces coke, a coal-derived fuel used for manufacturing steel.Video posted by Mandy Joseph on Saturday shows flames and smoke rising from the plant in Warren as firetrucks rush to the scene.“Those normally don’t blow fire [unintelligible] like that,” a voice can be heard saying in this video showing flames at the plant.Local news outlets reported that the explosion was heard from miles away from the plant. Credit: Mandy Joseph via Storyful