Lindsay Heimbach goes airborne while sledding down a hill on Mt. Lemmon December 27, 2008. (Photo by James Gregg/Arizona Daily Star)

A plane carrying a wing walker crashed at an air show and exploded into flames Saturday, killing the pilot and stunt walker, authorities said. The crash of the 450 HP Stearman happened at around 12:45 p.m. at the Vectren Air Show near Dayton in front of thousands of horrified spectators. No one else was hurt.

Photo: A wing walker performs at the Vectren Air Show just before crashing, Saturday, June 22, 2013, in Dayton, Ohio. The crash killed the pilot and the stunt walker instantly, authorities said. (Photo by Thanh V. Tran/AP Photo)

Michiko Ohashi (C), wearing a costume decorated with snacks, performs with other members of pop group Pottya at a fan meeting celebrating her birthday in Tokyo, Japan, October 16, 2016. Competition is cutthroat among Japan's thousands of pop idol wannabes, but a unique concept is winning fame for a band of “chubby” girls deploying their cheeky cuteness to combat prejudices against obesity. (Photo by Kim Kyung-Hoon/Reuters)

Photographer and editor with Reuters for 22 years, Andrew Winning has died of brain cancer at the age of 49. Here: Elite special police run for cover after gunfire was heard from inside the Japanese ambassador's residence in Lima, Peru, January 27, 1997. At the moment the shots were fired, police were parading past the residence in a show of force, and helicopters were flying above. Earlier, several armored personnel carriers rolled past the compound. Tupac Amaru rebels had seized the diplomatic compound December 17 and held 72 hostages. (Photo by Andrew Winning/Reuters)

The Washington Wizards dancers strike a pose during the team’s basketball game against the Minnesota Timberwolves at Capital One Arena on November 28, 2022 in Washington, DC. The Wizards won 142-127. (Photo by Geoff Burke/USA Today Sports via Reuters)

Phoenix Suns guard Chris Paul (3) crashes into fans during the second half of the game against the LA Clippers at Footprint Center in Phoenix, Arizona on February 16, 2023. (Photo by Joe Camporeale/USA TODAY Sports)

Winner Jorge Prado of Spain in action during the first MXGP race at the 2023 FIM Motocross World Championship in Frauenfeld, Switzerland, 10 April 2023. (Photo by Gian Ehrenzeller/EPA)

Emma Raducanu of Great Britain receives treatment in her women's singles first round match against Bianca Andreescu of Canada during day three of Internazionali BNL D'Italia at Foro Italico on May 10, 2022 in Rome, Italy. (Photo by Alex Pantling/Getty Images)