Four crew members ejected safely when two United States EA-18G Growler military aircraft collided mid-air during an airshow in Idaho on Sunday, the US Navy said.
The two jets collided during an aerial demonstration at the Gunfighters Air Show.
Mountain Home Air Force Base, which is two miles from the collision, has been locked down due to the crash.
A spokesperson for the base told Reuters that emergency responders are on the scene and an investigation is underway.
First air show since the most recent crash
This is the third major incident in 23 years at the Gunfighters Air Show, and the first airshow since a hiatus resulting from a fatal 2018 civilian glider incident.
This is a developing story.