News reports say emergency crews have responded to an explosion in downtown Nashville, a city in Tennessee, US. Black smoke and flames were seen billowing from the area.

Iran Press/America: According to ABC News, the buildings shook in the immediate area and beyond after a loud boom was heard early Christmas morning. Police and fire crews were on the scene.

The Metro Nashville Office of Emergency Management told Nashville television station WKRN that a parked recreational vehicle exploded and damaged several buildings. No injuries were immediately reported. The station also quoted officials as saying the explosion did not seem suspicious.

Buck McCoy, who lives near the area, posted videos on Facebook that show water pouring down his home's ceiling. Alarms blared in the background and cries of people in great distress ring in the background. Fire is visible in the street outside. McCoy said the windows of his home were entirely blown out.

“All my windows, every single one of them got blown into the next room. If I had been standing there, it would have been horrible,” he said.

“It felt like a bomb. It was that big,” he told The Associated Press.

“There were about four cars on fire. I don’t know if it was so hot they just caught on fire, and the trees were all blown apart,” he said.

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