UPDATE 7:30AM -- Federal investigators are returning to the scene of an explosion at a home in Middle Tennessee that killed one person.
Bureau of Alcohol, Tobacco, Firearms and Explosives spokesman Michael Knight says crews will begin processing the area of the blast Tuesday morning in an effort to determine its origin.
Knight said the blast Monday evening killed one person. An injured person was also found at the scene, but Knight said authorities are still trying to determine whether the injury was caused by the explosion.
Knight said authorities searched the property Monday night but found no other explosives. He says it appears to be an isolated incident.
He said investigators also will be interviewing neighbors and asks that anyone who's seen suspicious behavior in the area lately to call authorities.
LEBANON, Tenn. (AP) -- Federal and local officials are investigating an explosion at a residence in Middle Tennessee.
Alcohol, Tobacco, Firearms and Explosives spokesman Michael Knight said authorities hadn't determined whether Monday's blast was inside or just outside the residence in Wilson County.
Knight said one person was killed and one injured, but it hadn't yet been determined whether the death and the injury were caused by the explosion. He said authorities had ruled out accidental causes for the explosion, such as natural gas, but had not yet determined what types of explosives were involved.
The spokesman added that authorities were continuing to search the 1/4-acre property late Monday to ensure there were no additional explosives on it or adjoining properties before they begin the process of recovering evidence.
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