Police believe the incident in front of a telecommunications office was likely a suicide bombing.
A parked camper van exploded early on Christmas morning in what police believe to be a deliberate act.
Donald Trump is projected to win in the state of Tennessee.
It has voted Republican since the end of the presidency of Democrat Bill Clinton. In 2016, Trump was 26 percentage points ahead of Hillary Clinton.Copyright: BBC
By Jared Lawthom
President Trump's press secretary said it was safe to reopen and that "the child will always come first".
The US country music star performed to healthcare workers in their cars in Tennessee.
The Tennessee tornadoes have killed 24 people and injured many more. About 44,000 people are without power.
At least nine people have been killed in the southern US state, media reports say.
When Nashville musician Amanda asked violinmaker Ray to make her a new instrument, little did she know where it would lead.