Officials in southeastern Kentucky are trying to solve the mystery of what caused loud booming sounds across the area.
Whitley County Sheriff Colan Harrell told The Times Tribune that the sounds heard Wednesday afternoon were "just a real freak thing," but no one has definitively nailed down the reason for it.
Dozens of people reported hearing the sound in Whitley, Laurel, Knox and McCreary counties.
The general consensus is the first "boom" was approximately at 1 p.m., the second around 2 p.m.
Harrell said a relative of one of his staff "had her dishes rattle in the cupboard."
Emergency Management Director Danny Moses said there was no indication of an earthquake.