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Dallas air show crash: Two World War Two planes collide in mid-air
Two vintage World War Two-era planes have collided and crashed at an air show in the US state of Texas, killing at least two.
Footage shows the aircraft striking each other at a low altitude, breaking one of the aircraft in half. A fireball can be seen as it hits the ground.
The planes - one of them a Boeing B-17 Flying Fortress - were taking part in a commemorative air show near Dallas.
It was not immediately clear how many people were in the two aircraft.
The Allied Pilots Association, which represents American Airlines pilots, said Terry Barker and Len Root - two of its former members - were among people who died in the collision.
Other media reports suggest as many as six people may have died in the collision.
The B-17 typically carries a crew of five, she said. The P-63 is a single pilot aircraft. Both were based out of Houston and neither plane was giving rides to paying customers at the time, she said.