Some areas of Pigeon Forge also were being evacuated, according to fire spokeswoman Trish McGee.
The billionaire criticises the decision to hold a recount in Wisconsin, but does not offer any evidence for his claims.
The threat came after his team said the Obama administration made too many concessions to the communist nation.
Cubans queue outside a Havana memorial centre to pay their respects as Jeremy Corbyn reveals he will not attend Castro's funeral.
Police are investigating whether the attack on one of America's largest university campuses was terrorism.
Australian Lisa Skinner fell three metres and landed on her head during her routine, but her mother says "her arms and legs work".