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Six people are feared dead after historic WWII-era B-17 Flying Fortress and Bell P-63 Kingcobra planes collide in mid-air at Dallas airshow.

Six crew members are feared to be dead after two historic planes collided in mid-air at the Wings Over Dallas airshow Saturday afternoon

Video posted online shows a Boeing B17 Flying Fortress bomber quickly approaching the flight path of a Bell P-63 Kingcobra

Soon, the bomber completely collides with the Kingcobra, tearing it apart as the larger plane split in half and crashes in a ball of fire nearby

Witnesses say debris from the planes is strewn over Highway 67

Footage from the aftermath showed smoke billowing above tents at the festival.

Video posted online shows a Boeing B17 Flying Fortress bomber approaching the flight path of a Bell P-63 Kingcobra. The bomber appears to fly by the P-63's blindspot and the planes collide, ripping each other to shreds.

The front of the B17 split off from its rears as its wings caught on fire and it spiraled to the ground nearby.

One man who was at the air show said the P-63 was banking left at the time and had the B17 in his blind spot so he could not prepare for the impending crash.

The Flying Fortress is like a 'tractor-trailer truck,' big enough to carry a crew of 10 or 11 people, while the Kingcobra is a single-pilot fighter plane.