Officials classified the incident as a “mid-air collision,” and the Air Force base has been placed on lockdown as an investigation is underway.
This is the first time in eight years that the air show has been held at Mountain Home Air Force Base.
Previous accidents occurred at the event, according to the Idaho Statesman newspaper.
A hang glider pilot died in an accident at the 2018 air show.
In 2003, an Air Force Thunderbird jet crashed, but the pilot was able to eject safely.
Due to Sunday’s crash and the subsequent investigation, the remaining air show events have been cancelled.

