Q 🚨They left watching the unthinkable. “Dallas Air Show turned into horror — 6 heroes gone instantly 💔..See more (zbs)
Six people were killed after two historic military aircraft collided and crashed Saturday during an air show in Dallas, exploding into a ball of flames.
Emergency crews raced to the crash scene at the Dallas Executive Airport, about 10 miles (16 kilometers) from the city's downtown.
News footage from the scene showed crumpled wreckage of the planes in a grassy area inside the airport perimeter.

According to the FAA, the planes were a Boeing B-17 Flying Fortress and a Bell P-63.
“According to our Dallas County Medical Examiner, there are a total of 6 fatalities from yesterday’s Wings over Dallas air show incident,” Dallas County Judge Clay Jenkins tweeted Sunday.
There were no reported injuries among people on the ground.
Anthony Montoya saw the two planes collide.
"I just stood there. I was in complete shock and disbelief," said Montoya, 27, who attended the air show with a friend.
"Everybody around was gasping. Everybody was bursting into tears. Everybody was in shock."
Officials would not say how many people were on board the planes, but Hank Coates, president of the company that put on the airshow, said one of the planes, a B-17 Flying Fortress bomber, typically has a crew of four to five people.
The other, a P-63 Kingcobra fighter plane, has a single pilot.
No paying customers were on the aircraft, said Coates, of Commemorative Air Force, which also owned the planes.
Their aircraft are flown by highly trained volunteers, often retired pilots, he said.
A team of National Transportation Safety Board investigators arrived at the scene of the crash on Sunday.
Dallas Mayor Eric Johnson said the NTSB had taken control of the crash scene, with local police and fire providing support.
"The videos are heartbreaking," Johnson said on Twitter.
The planes collided and crashed at roughly 1.20pm, the Federal Aviation Administration said in a statement.
The collision occurred during the Commemorative Air Force Wings Over Dallas show.
Victoria Yeager, the widow of famed Air Force test pilot Chuck Yeager and herself a pilot, was also at the show.
She didn't see the collision, but did see the burning wreckage.