Over the past hour, a video clip has been circulating on social networks, which captures the moment of a mid-air collision between two aircraft during an air military parade in Dallas, Texas, USA.
The video, released for the first time by US media, documents the first moments of a B17 colliding with another aircraft during the Air Force Veterans Show.
Officials said it was unclear how many people were on board the planes.
The city authorities also do not yet know about the condition of any of the pilots and whether there are injuries from falling debris.
According to eyewitnesses, debris was scattered along Interstate 67 in Texas.
In addition, the Federal Aviation Administration and the National Transportation Safety Board launched an investigation.
