Federal regulators are working with the Occupational Safety and Health Administration to decide who has jurisdiction over a fatal accident involving a gas-drilling rig near Fairview, W. Va..
The incident occurred at a coal mine prep plant.
Mine Safety and Health Administration spokesman Jesse Lawder says an unidentified worker died Monday night when the rig overturned and crushed him at CONSOL Energy's Loveridge Mine preparation plant in Fairview.
Lawder says the rig was doing exploratory work on Marcellus shale gas deposits, drilling 30-foot holds and setting off small explosives for seismic testing.
Pennsylvania-based CONSOL didn't immediately comment Tuesday.