Black smoke billowed into the sky after two historic military aircraft crashed during an air show in Dallas. The number of people on the plane was not known.

The Dallas Executive Airport is close to the city's downtown. Wreckage of the planes were shown in a grassy area inside the airport. There were no reported injuries among people on the ground, according to Dallas Fire- Rescue.

The two planes flew close together.

I was standing there. I was in total shock and disbelief when I saw the air show. Everyone was gasping. Everyone was crying. Everyone was shocked.

The president of the company that put on the airshow said one of the planes has a crew of four to five people. One of the planes has a single pilot.

The planes were owned by the Commemorative Air Force and there was no paying customer on them. Highly trained volunteers fly their aircraft.

The National Transportation Safety Board will be at the Dallas crash site on Sunday.

The mayor of Dallas said that the crash scene had been taken over by the National Transportation Safety Board.

The videos are very sad.

The FAA said in a statement that the planes crashed at 1:20 p.m. There was a collision during the show.

The widow of a famous Air Force test pilot was at the show. She saw the burning wreck despite not seeing the collision.

He said that it was pulverized.

She said that they were just hoping they had all gotten out.

During World War II, the U.S. used an enormous four-engine bomber called the B17 to attack Germany. The Kingcobra was used by the Soviets. At the end of World War II, most B-17s were scrapped and only a few remain today.

The fighter plane appeared to fly into the bomber, causing them to crash to the ground and set off a large ball of fire.

It was terrible to see. Texas was in the area when the crash happened. The children were in the hangar with their dad. I'm trying to understand it.

Young uploaded a video to her Facebook page that shows a woman crying and screaming in front of her.

Air show safety has been a concern for a long time. 11 people were killed in Reno, Nevada, when a P-47 crashed into a crowd. Seven people were killed in a bomber crash in Connecticut. Twenty-three deaths have been caused by accidents involving World War II-era bombers since 1982, according to the National Transportation Safety Board.

The website advertising the event says it is America's premier World War II Airshow. More than 40 World War II-era aircraft were to be on display at the show. There was a Saturday afternoon schedule of flying demonstrations that included the bomber parade and fighter escort.

Videos of previous Wings Over Dallas events show vintage warplanes flying low in close formation. Planes are performing stunts in the videos.

Officials said that the FAA was also investigating.

That's right.

There was a bleed from Little Rock. The contributors to this report were Bobby Calvan in New York City, Ken Miller in Oklahoma City, and Dave Kolpack in Fargo, N.D.