Update (1656 EST):
At least six crew members total from the two aircraft have been confirmed killed.
Update (1555 EST):
At least seven people have been rescued alive from the wreckage of a B-17 after a midair collision at the Wings Over Dallas Air Show. The crash occurred approximately 35 minutes ago. It is currently unclear how many have died.
Debris is currently covering Martin D. Love Freeway near the Dallas Executive Freeway. Emergency services are still extinguishing the flames. This is developing.