From the Facebook Page of WKRN Reporter, Andy Cordan:
This is Fire Truck 37 out of Bellevue. According to NFD PIO Joseph Pleasant, the truck was responding to a water rescue call. The truck was driving along Old Harding Pike when the vehicle slid and went off the road.
Pleasant tells me, “Our personnel were able to safely get out of the trucks as the water was rising. This happened during the ongoing response to emergency calls.”
The Department is investigating the circumstances surrounding the incident.