Today, USA's Federal Aviation Administration (FAA) issued a statement regarding the issue as follows:
In light of recent incidents and concerns raised by Samsung about its Galaxy Note 7 devices, the Federal Aviation Administration strongly advises passengers not to turn on or charge these devices on board aircraft and not to stow them in any checked baggage.
Reports says that several Australian airlines (Qantas, Jetstar, and Virgin Australia) have also imposed a ban of the phablets.