A loud explosion in Tennessee rattled residents on Saturday night, leaving authorities stumped as to the origin of the commotion.

Residents of Montgomery County, Tennessee, called the police over a noise that sounded like a “loud explosion” that shook the area at 10:50 p.m. The loud noise was heard all across the county, with some residents saying they could feel the ground shake, the Clarksville Police Department stated in a post on Facebook.

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