From Nashville CBS affiliate WTVF:
Emergency crews were called to the scene of an explosion during a sheriff's convention at the Opryland Hotel.
The explosion was reported around 8:30 p.m. Tuesday.
The National Sheriff's Association annual conference was being held at the Opryland Hotel. Homeland Security was called to the scene.
Early reports indicated there was a mechanical explosion behind an elevator in the hotel. No injuries were reported and the building was evacuated. Significant damage was reported in the hotel.
It was unclear when people would be able to return to their rooms at the Opryland Hotel.
We're told 35 Kentucky sheriff's are attending the conference.
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