Police have a person of interest or persons of interest in connection with the explosion that rocked Nashville on Christmas morning, CBS News is reporting.
Three people were injured in the blast that was set off by an explosive-packed RV that was parked on a downtown Nashville street around 6:30 a.m. Friday.
CBS Chief Justice and Homeland Security Correspondent Jeff Pegues tweeted the development shortly after noon.
Police and federal agents have been combing the area damaged by the blast for clues.
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