Carlos Gonzalez, spokesperson for the Chihuahua state prosecutors' office, said the driver appeared to have lost control of the truck after leaping over cars it was crushing during a demonstration at the "Extreme Aeroshow" yesterday.
Video taken by a spectator and provided to The Associated Press shows the truck making an initial pass over two cars, then making a second pass at higher speed, coming down sharply nose-first and bouncing violently before piling straight into the crowd, which stood directly in the path of the monster truck, unprotected by any wall or barrier.
"I fell over, and when I turned around I saw the tire very close. It hit me and threw me to the other side," Jesus Manuel Ibarra, 41, said as he was treated for injuries to his arm and hip.
Gonzalez said the accident killed at least one child and hurt 80 people, 46 of whom remained hospitalized early today. He said the number of dead and injured could rise as officials received updated information today morning. The local health system listed the names of 67 injured people on its Facebook page, calling urgently for blood donations and help from local doctors and nurses.
Spectator Daniel Dominguez, 18, said he was happily watching the show with a group of relatives when the truck came down hard in the middle of the cars. "The driver hit his head and his helmet flew off," Dominguez said. "The truck came directly at where we were."