More than 150 people were hurt and dozens of homes and businesses were flattened when the twisters hit in the middle of the night.
WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT:
http://abc.go.com/shows/world-news-tonight
WATCH WORLD NEWS TONIGHT ON HULU:
https://hulu.tv/33iKepm
#WorldNewsTonight #DavidMuir #TennesseeTornado