INDIANAPOLIS — The Indiana Occupational Safety and Health Administration is investigating an explosion Oct. 10 that injured two people at an Eli Lilly Co. plant in Greenfield, Ind., a state OSHA representative told CONTRACTOR. He declined further comment.

The Indianapolis Star reported that two independent contractors suffered minor burns when a valve collar failed while steam pressure was being restored after it had been reduced during a $120 million renovation in the Ely Lilly laboratories. Officials would not identify the contractors, who were taken to a nearby hospital by helicopter for treatment and released.

The newspaper also reported that at approximately the same time, a valve broke on a steam line under a street in Indianapolis. The sudden flow of high-pressure steam propelled one worker out of the manhole where he was working, according to the newspaper. The condition of the injured man is not known.