Nashville officials relieved explosion did not claim lives, resolved to find motive, suspects

Nashville is turning from relief to resolve, Mayor John Cooper said Friday evening after an early morning explosion downtown upended Christmas Day and caused destruction for several blocks.

No known suspects nor motive have been announced behind a bomb that detonated inside a parked RV on Nashville's historic Second Avenue near Lower Broadway.

Police have found what they believe are human remains but had not confirmed any fatalities.

Cooper, at the last update for the evening, said the relief that not more people were injured has now turned to anger and determination to bring those responsible to justice.