Investigators believe outdoor excavation work led to an explosion that destroyed a home in western Ohio, killing a man and injuring eight others.
The state fire marshal's office says natural gas had filled the basement of the duplex home before Saturday's blast in Fairborn. A news release says the gas buildup likely resulted from the excavating being done outside.
Fire officials had said a gas line apparently was struck and ruptured.
Authorities say 71-year-old James R. Davis died as the result of the explosion. The Dayton Daily News has reported that the Springfield man owned an excavating company.
The fire marshal's office says investigators are still trying to determine where Davis and the injured people were located when the blast occurred.