LEXINGTON, Ky. (WDRB/AP) -- Fire officials say three people are recovering, after being injured in an explosion during an estate sale at a house in Lexington.

Lexington Police Lt. Nathanial Muller said a man picked up what he thought was a lighter and it exploded.  "It turned out to be an improvised explosive device, and it went off in his hand." 

Additional explosives were found in the home, but there was only one IED. 

The person who lived in the home died two weeks ago.  Police say the man was an "explosive hobbyist," but there is no evidence he created the explosives with an intent to cause harm. Investigators did not release the name of the estate holder. 

Lexington Fire Department Battalion Chief Brad Whittaker described the blast as a "low-level explosion" that caused no structural damage inside the house.

All three of the injured are expected to survive. 

Whittaker says one person had a "fairly significant" hand injury, another suffered a leg injury and the third person had a concussion-type injury. 

No charges are expected to be filed in the incident, which investigators say was accidental. 

Agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives were called to the scene to assist local authorities in the investigation.

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